Sorry for the delay guys. We were at Campus Party in Berlin and I just found the time this morning to read the whole topic.
We're discussing this internally and will let you know if there are any news.
My personal opinion is that this realy looks suspicious but we don't have proof at the moment whether CPUs were shared or not.
But I also agree on you guys that we've banned members in the past with less evidence. So this is realy hard to decide and we'll need some time to think about that properly.