How to qualify a Reddit thread before replying (5-question filter)

Not every Reddit thread that looks like buying intent is worth replying to. Some are months old. Some are from non-buyers (students, hobbyists). Some have already been answered 14 times. Some are in subs that auto-remove vendor comments. The 5-question filter below cuts 60% of wasted comment effort by qualifying threads before you spend 5 minutes drafting.

This is the pre-reply checklist we use internally at repco.

Key takeaways

• 5 questions: age, OP authority, existing replies, sub rules, intent specificity.

• A thread fails if it scores under 3/5 — don't reply, the conversion math doesn't work.

• Most-failing question: OP authority (a student or hobbyist asking about "the best CRM for B2B" isn't a buyer).

• Age cutoff: 48 hours. Older threads have already been answered or moved on.

• Pair this filter with the 1–10 buying intent score framework — score the thread, then qualify it.

What's the 5-question filter?

Go through these 5 questions in 60 seconds before drafting:

1. Is the post under 48 hours old? — if no, skip.

2. Is the OP a real buyer? Check their post history, profile, role. Hobbyists, students, employees-not-decision-makers fail.

3. Are there fewer than 8 substantive replies already? — if more, your reply gets buried.

4. Does the sub allow vendor-adjacent comments? Check pinned mod posts. Some auto-remove.

5. Is the intent specific? "Best CRM" = vague. "Looking for a CRM under $50/mo for a 3-person agency that already uses Notion" = specific.

3+ "yes" answers = reply. 2 or fewer = skip.

Why does the age cutoff matter so much?

Reddit threads have short attention windows. ~70% of engagement on a typical post happens in the first 24 hours. By 48 hours, the thread is buried in the sub feed. Your reply at hour 72 reaches almost nobody — OP rarely returns to read late comments, and other potential lurkers have moved to fresher threads.

Exception: high-engagement threads that have over 200 upvotes can stay relevant for 5–7 days because the sub algorithm keeps surfacing them. For these, age cutoff stretches to 96 hours.

How do I tell if the OP is a real buyer?

Four quick checks on their profile (takes 30 seconds):

1. Account age — over 90 days = probably real, under 30 = often a throwaway or new identity.

2. Post history — do they post about running a business / making purchasing decisions? Or only hobby / lifestyle?

3. Profile bio / external links — founders + decision-makers often have a website or company link.

4. The specific question they asked — "best CRM for our team" implies authority. "What CRM should our company buy?" implies they're not the buyer.

A student asking "what's the best CRM for B2B SaaS?" looks like buying intent but isn't.

Why is reply count a qualifier?

Math. Reddit threads with 8+ substantive comments mean OP has heard from multiple peers already. Your reply at comment #9 is buried under "top comments" sort. Even if your reply is technically the best one, OP probably won't see it.

Exception: if existing replies are all promotional/low-quality and you have a genuinely better answer, the thread can be salvageable. Look at the top 3 comments — if they're vendor pitches, your peer-style helpful comment can rise to the top.

What's the most common qualification failure?

Intent specificity. Vague threads ("recommend a CRM") attract dozens of vendor comments and don't convert because the OP wasn't actually buying — they were research-shopping. Specific threads ("need a CRM under $50/mo for a 3-person agency that uses Notion") have lower comment volume but 5–10x higher per-comment conversion because the OP is in active buying mode.

Filter out vague intent threads ruthlessly. They look productive (lots of activity), they aren't.

Frequently asked questions

What if I'm not sure about OP authority?

Default to skip. The 30-second profile check is fast — if you can't find evidence of buying authority in 30 seconds, the OP probably isn't a real buyer. Better to miss 1 in 20 real prospects than to spend time on 19 in 20 non-buyers.

Can I batch-qualify and reply later?

Yes — prioritize by score. Reply to 5/5 threads first, then 4/5, then 3/5. Skip 2/5 entirely. With repco's intent scoring this happens automatically (see the 1–10 buying intent score framework).

What if a thread fails 1 question but passes the other 4?

Usually still a reply candidate — 4/5 = strong signal. Look at WHICH question failed. Failing on age but passing on specificity = often still worth replying. Failing on OP authority = always skip.

Qualify before you draft

Drafting a comment takes 5 minutes. Qualifying a thread takes 60 seconds. The math is obvious: spend 60 seconds qualifying, save 5x the drafting time on threads that don't convert.

repco automates the 5-question filter for every Reddit signal it surfaces — you only see threads that pass 3+ checks. Find my buyers (Free) and skip the manual qualification.

Further reading: How to monitor Reddit for buying intent signals | The comment-first, DM-never Reddit strategy | How to qualify B2B prospects before sending an outreach DM