It could be he's just a honest enthousiast, but I can't know for sure.
I am. But you dont' have to trust me anyway. The only thing you have to trust is that 6 witnesses (that is to say a majority of the 12) does not collude together.
There is no risk using our witness.
It goes hand-in-hand to not trust the operator is to not trust the witness

Sure, I understand. While we all trust in Tonych' (and we do) that is not a problem but keep in mind that the project will be mature only when true witnesses diversity will exist. That's why MEJGDND55XNON7UU3ZKERJIZMMXJTVCV is posting, just for thoses who want to use it.
I think to piggy back onto what you are saying, until there is further adoption, there cannot be true diversity. If theoretically only the members of this thread were using ByteBalls then there has to be some level of overlap within the group. Unless of course every person on here was a poweruser and each person wanted to be a witness and etc.
One could imagine a system where all wallets would be potential witnesses such forming a permanent "pool of anonymous witnesses" and each wallet posting a units would pick 12 (or more) among the pool at random but it is not Byteball anymore...would be a fork.