Isn't it ironic the details of the acquisition isn't being transparently shared? From Indie Hackers site: "Anyone with a business or side project that's generating at least $300/mo in revenue. There's no upper limit. Of course, you have to be willing to share your revenue — the point of this site is transparency!" Source: https://www.indiehackers.com/submit I think we have the "right" to know what the transaction ent…
The selling price seems very different from 'revenue per month' though.
Additionally consider these facts: the site is quite popular and has gained some traction but is still primarily interesting for a specific niche (startup founders). I would say the price for acquisition is at least $500000 and may very well be around or above 1 million which is even more likely because the owner has agreed to continue work on the site and growing it even more.