Absolute proof is hard to come by since we don't require people to establish their identity when signing up at the present time. But (1) you're logged in from the same ISP as @sifferkoll, (2) your mannerisms are indistinguishable from those of @sifferkoll, and (3) your account was created shortly after @sifferkoll was placed under suspension.
Just to give a heads-up to anyone else reading this thread so that it does not come as a surprise, the likelihood is very high that this account will be perma-banned.