Re: How about using the ad space area for Non profit Bitcoin project ads?
Does anyone know the number of monthly unique traffic the forum have? I think it's something higher than a million.
The unique traffic is only around 100K-200K, it ever reach one million but in 2017-2018. That's why cryptocurrency projects choose to promote on social medias ads nowadays. 
what I remember there was a factoid about cleanupbitcoin.
I did not notice the factoid gone too. That's a surprise.