Marketing in Public

The library

Marketing experiments

What founders tried, what it cost, and what happened. Every number shown was disclosed by the founder.

8 experiments match for “linkedin”

Showing LinkedIn and LinkedIn Ads experiments, plus any that mention “linkedin”.

LinkedIn AdsDidn't work
183.6K
impressions
337
clicks (round 1, $300)
$2K
spent

Tony Dinh spent $2,052 on LinkedIn Ads for TypingMind Custom and stopped: the targeting couldn't reach his buyers

Tony Dinh · TypingMind Custom

Tony Dinh tested LinkedIn Ads for TypingMind Custom in three rounds: broad targeting, Lead Gen forms, then a Lead Gen form turned into an AI quiz. $2,052.03 bought 183,663 impressions and a handful of leads, none of whom had come back when he posted. He stopped the channel.

Read experiment Public source
Cold DM
3
paying customers
$201
first MRR
80
DMs sent

Pratham Naik sent 80 LinkedIn DMs in a week: 12 replies, 8 users, 3 paying ($201 MRR)

Pratham Naik · BearConnect

Instead of building an X audience or launching on Product Hunt, Pratham Naik DMed 80 agency owners from LinkedIn groups in one week, offering free access for honest feedback. 12 replied, 8 used BearConnect, and 3 paid within two weeks: his first $201 MRR.

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Directories & launch sitesDidn't work
8
signups
0
paying customers
23
days

22 directories, 10 channels, 23 days: 8 signups and zero paying customers

Muhammad Haris Zafar · ColdCraft

Muhammad Haris Zafar pushed ColdCraft across 22 AI directories, about 15 listing sites and daily posts on nine social channels. In 23 days: 8 signups, 0 paying. Directories and social posts produced no traceable signups; community posts and one-on-one conversations produced all of them.

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RedditDidn't work
0
paying users
2
posts auto-removed
10
days

Reddit was his main channel. Ten days in: shadow-removed, then banned — and 0 paying users

Koran Thorne · Helios

Koran Thorne set out to get 50 users in 25 days with Reddit as the main channel. He built karma for two weeks, then his first posts were removed by Reddit's spam filter, his comments became invisible to everyone but him for nearly a week, and the account was banned sitewide. Day 10: 0 paying users.

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Product HuntDidn't work
$0
revenue
0
paying members
15
days

15 days after launching to zero audience: $0, 3 upvotes, 0 stars

Taiko_TOEDA · AI-automation safety audit membership

Launching a $9/month membership with no list and no following, Taiko_TOEDA published the day-15 numbers: $0 revenue, 3 Product Hunt upvotes, 0 stars across 17 GitHub repos. The only thing that worked was a careful argument in someone else's replies.

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Reddit
4.7M
docker downloads
$14K
MRR, Nov 2025
$80K
MRR, Apr 2026

Nevo David used open source as permission to market Postiz on Reddit

Nevo David · Postiz

With no strong social following, Nevo David built Postiz as open source so he could post it in developer communities like r/selfhosted and DEV, shipping a new version for every small feature to keep having something to post.

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Reddit
Featured
$1.1K
MRR
798.1K
reddit views
66
days

Shipper in 66 days: 798,124 Reddit views, 59 paid users, $1,175 MRR

David Ch · Shipper

David Ch tested every free channel for Shipper in its first 66 days. Reddit posts written as a fellow builder — honest numbers, no links — drove 798,124 views; a #7 Product of the Day added a spike. Directories, Hacker News and an Indie Hackers post did nothing.

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