ChipMixer did take precautions at the time Bitcoin Gold forked, but it seems that they don't really add much value to this fork, and for that reason didn't do anything, or at least, not that we know of since ChipMixer hasn't posted.

I was right when it comes to asking whether or not ChipMixer would do something to prevent abuse. I have been offered a certain amount of funds through PM to remove my earlier post, but I of course ignored it.

It was done via a brand new account just created for that purpose.