I see a pattern here.

https://bitcointalk.org/index.php?topic=5449784.msg62156205#msg62156205

I don't know if these multi-account holders have a plausible deniability plan in advance if they are caught to avoid getting negative tags. The same thing happened in that case.

The explanations he gives are within reason, but they prove nothing. That Zilon and dbc23 write on different boards may obey a pre-established plan precisely to try to make it appear that there are different people behind the accounts.