Yes, I am a sutpid guy.
But, what's wrong? a Newbie with only two posts so far, and the time gap between two post is nearly one year, jumped in Meta, in the topic, and say aggressive words.
If wearing signature of Best Mixer or any kind of shut-down sites are risky for the forum, admin would have definitely done something to wipe out Best Mixer avatar or signature days ago. It is not my or your role to say about that.
In a nutshell, there is nothing happened, and even no warning about this, I think it is safe to wear signature or avatar of Best Mixer if users want. Nevertheless, it is a bit nonsense to do it.