What to post on Threads: a study of 46,000 posts
What length, form and delivery work on Threads. Not advice but measurements: length, paragraphs, questions, emoji and hashtags against real response.
There's no shortage of "write something interesting" advice without us. Here is only what shows up in the numbers: we went through 46,816 Threads posts and compared them with each other.
About the data: we analyzed public posts and compared median response within this sample. These are observations, not Meta’s official ranking weights; an association with response does not always mean that the feature caused the result.
Length
The median across the platform is around 80 characters. The posts that collect the most discussion run about 130.
That's very little. A 300-character post looks like a wall of text in the feed and gets scrolled past unread. If a thought doesn't fit in two or three sentences, either split it into two posts or cut it down.
Paragraphs decide more than length
| Post form | Likes (median) | Replies |
|---|---|---|
| Broken into paragraphs | 5 | 4 |
| Solid block | 2 | 1 |
Four times the difference in replies. And among posts longer than 250 characters, solid ones are almost nonexistent: 409 against 1,280 broken up. People intuitively break long text — and they're right to.
The rule is simple: two or three parts, an empty line between them.
A question at the end
| Replies (median) | |
|---|---|
| Post ends with a question | 6 |
| Doesn't end with one | 2 |
Three times more. It's the strongest simple move on the platform.
But with a caveat: the question must be about a specific thing in this post. The test is simple — if you remove the first paragraph and the question still reads fine, it's a filler question. "How about you?", "Who else does this?" — that's a template, and it doesn't work.
Specifics
A post with a number in the text collects more replies than one without: 3 against 2 by median.
It's not about the digits themselves, but that a number signals a real story. "I keep forgetting my keys" is a general phrase. "I looked for my keys four times last night" is a thing that happened.
Emoji and hashtags
Emoji appear in 44% of the platform's posts, and they add a little response (3 against 2). One or two in the right place is fine; a garland of ten reads as an ad.
Plain hashtags containing the # symbol appeared in only 1% of our sample and showed weaker response. They should not be confused with Threads’ built-in topic tag: Meta says posts with tagged topics generally receive more views. The practical takeaway is to choose one genuinely relevant topic instead of adding a string of hashtags.
The first line
In the feed you see two or three lines, then "more." So the first sentence decides whether a post gets expanded or scrolled past. A run-up like "today I want to share some thoughts on how…" eats exactly the space where you need to hook.
Compare:
Today I'd like to share a small observation that came to me over breakfast.
and
I have a talent: open the fridge, look inside, and close it.
The second is the start of a post. The first is a warm-up before the start.
What to write about
What works is whatever the reader recognizes in themselves: everyday observations, admissions of small weaknesses, short stories with a beginning and an end, disagreement with the accepted view.
What doesn't work: retelling the news without your own opinion, motivational quotes, "buy from us" posts. Threads is about conversation, and selling head-on is obvious here right away.