BO and Q/NSA know exactly who's who. They know which IPs are home cable/DSL, which are VPNs, Tor, and DNC/MediaMatters ranges. They know where useful research gets posted from, where bot activity comes from, and where human shills post from. They've been watching it for over a year. They know the patterns. And I have no doubt that they have correlated the captcha kvetching with previous activity. They know where objection to the change comes from.
They don't care about our arguing and name calling. They know who's who.