Logically ruder than claiming one's dislike is 'Bayesian evidence'?

1. I said unjustifiably rude, not logically rude (although now you are being the latter as well).

2. There was nothing logically rude about kompo claiming his own expertise as evidence. It does come across as somewhat arrogant and leaves kompo vulnerable to status attack by anyone who considers him presumptive but even if his testimony is rejected "logical rudeness" still wouldn't come into it at all.

Since when do we dress up our linguistic idiosyncrasies in capitalized statistical drag?

Don't try to "dress up" corrections about basic misuse of English as personal idiosyncrasies of komponisto. He may care about using language correctly more than most but the usage he is advocating is the standard usage.