I was just focusing on the number of Bitcointalk “active” users, and you make it 611 (presumably K) profiles. That number alone is near the sum of all non-newbie profiles, and many of those are not active at all, nor have been for years. Since active is not a universal term (you could consider active in the last 3 months, six months, a year and so on), there should be a definition of what is being considered as “active”, making sure it is the same definition across all three compared platforms to make the comparison feasible.

Edit: Just seen that I misread online users for active users. The three sites show an online user count in their stats, which is what is being compared (and not an active user count which is what I was ranting about).

Either they quit for good, or they resurrect on the third day and start from scratch, probably wasting their time as they may be caught for ban evasion.