Comment by Bender
I thought about that as well. This would be true if team-hiromoot is not cooperating with the bot owners, otherwise the bots could simply be excluded given all their traffic is authenticated with a 4chan pass. Other chans have manipulated their stats to change how active they appear so it's really hard for me to rely upon that.
At this point your hypothesis is unfalsifiable. I was on /g/ before and after the hack and didn't detect any big changes. It was as shitty as ever.