That was an example of sporadic immature behavior on his part, certainly. Lately, though, he seems to be losing the ability to think almost anything through.
IANAD, not a medical opinion, etc., etc., but I wouldn't be surprised if a dementia diagnosis is in his near-term future.
that was the moment for me.
and given that he's not the only one going erratic after years of performing, I'm wondering if it isn't some "miraculous" designer drug finally disclosing it's side effects after years of usage
I don't really get the need people have for a causal explanation. The internet is _full_ of arseholes saying stupid things; we don't in general assume they're all on drugs or anything.