In July/August 2021, Gene Maryushenko experimented with Reddit advertising. He shared some of the stats in this Twitter thread. He experimented with ads at $0.1 and $0.2 CPC. He shared the results at the end of July. The $0.1 ads didn’t get many impressions. The $0.2 ads had 1100 impressions and 2 clicks.
He ended up having around 40k impressions but no sales
Later, he had to stop one set of ads and turn on the old ones. He also compared the costs of advertising on Dribbble vs. Reddit.
He shared the results of his experiment 10 minutes into this video.