If you sell a SaaS that has competitors — and yours probably does — there's a reliable lead source most founders ignore. It's the comment section under YouTube reviews, comparisons, and tutorials of those competitors.
This is the only channel where buyers explicitly compare options out loud, in public, with timestamps.
Why comments are louder than tweets
A tweet is a thought. A Reddit post is a question. A YouTube comment under a 12-minute review is a buyer who already invested attention into evaluating something. They've watched. They've decided. Now they're either confirming the choice, calling out what's missing, or asking what else exists.
Examples of what's in the comments under a typical "Best [category] tools 2026" video:
- "I tried X and it doesn't do Y, anyone know a tool that does?"
- "How does this compare to Z?"
- "Looks great but the pricing is brutal for solo users"
- "I switched from X to W, here's why" (followed by a list of features)
Every one of those is a qualified lead with a documented preference and a documented objection. You can't get this from a survey.
The search pattern that works
You don't need fancy tools to start. You need the right query types. Use these on YouTube directly:
[competitor] review(people deciding, often complaining about gaps)[competitor] vs [other competitor](comparison commenters explicitly state needs)best [category] tools 2026(commenters list their stack and complaints)[category] tutorial(advanced users hit edge cases the tool can't handle)why I switched from [competitor](literal churn intent)
Run each, sort by recent, scan the top 20 videos. In each video, sort comments by "Top" first to get the high-engagement complaints, then by "Newest" to catch fresh demand.
Scoring comments for buying intent
Not every comment is a lead. Use this 4-question filter:
- Are they describing a real workflow? Vague praise ("nice video!") = skip. Specific use case = keep.
- Did they name a constraint? Time, budget, a missing feature, a failed alternative. Constraint = real pain.
- Did they ask a question or express openness? "Anyone tried X?" or "Is there a tool that does Y?" — that's an invitation.
- Are they recent? Comments from the last 30 days convert. Two-year-old comments don't.
Pass all four = priority lead. Pass three = worth a reply. Pass fewer = move on.
How to reply
YouTube comments are public, replies are public, the creator can see you. So your reply needs to do three things at once:
- Be useful to the original commenter
- Not look like spam to the creator (or you'll get deleted)
- Be readable to the next 100 people who hit the thread (because they will)
Template that works:
Same problem here — I actually built a small tool for this. [One specific feature it does that addresses their constraint.] Free to try, link in my channel if useful. Either way, [tactical advice for the immediate problem they raised].
Note the "either way" line. It signals you're not just promoting — you're actually trying to help. That's what gets the upvote and stops the creator from flagging you.
What to do with the lead beyond the reply
A reply is necessary but not sufficient. The next move:
- Click their profile. If they have a personal site or LinkedIn linked, that's a warm intro vector.
- Note the video, the timestamp, and the creator. Two months from now you'll want to reference "your comment under [video] about [pain]" — that level of specificity converts.
- Keep a running list of competitor videos by search volume. The top 5 will produce 80% of your leads.
The pace problem
This works manually. It just takes hours per idea. I burned a full Saturday on this for one product before deciding to automate.
That's why Gorilla covers YouTube alongside Reddit, X, and TikTok. You paste your idea, it generates the comparison and review queries automatically, scrapes the comments, scores each one for buying intent. The YouTube slice is the one founders find most surprising — usually a higher hit rate than Twitter for B2B SaaS in particular.
A note on scale
If your competitor has 50 review videos and each has 200+ comments, you're looking at 10,000 comments to scan. Manual is not a real option past a certain size. But the value of the channel scales with competitor coverage — bigger competitor = more reviews = more comments = more leads. The math works out for SaaS in any moderately-mature category.
What this isn't
This isn't a hack to spam YouTube with promotional comments. Three reasons not to do that:
- YouTube's spam filter will catch you within a few weeks
- Creators get notifications and will block you, often publicly
- Your competitor's audience is the most skeptical audience — they'll see through it
The play is to be useful to one person at a time, in a way that the next reader respects. That's slow. It also compounds. A good reply under a popular video will keep generating signups for years.
When this channel wins for you
Quick checklist. YouTube comments are likely your best channel if:
- You compete in a category with at least 3 active YouTube reviewers
- Your product has a specific feature your competitors lack
- Your buyers are likely to research before buying (B2B, prosumer tools, anything over $10/mo)
- You can write a useful 2-3 sentence reply without sounding like a press release
If 4 of those are true, this channel will outperform Reddit for you. Test it.
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