I completely share that position on comedians these days,and their loose ways with laughing at their own jokes. If I needed guidance to highlight that something funny has been said, well I just don't accept that what has been said is definitely funny.
For some reason I associate laughing at one's own jokes with Wil Anderson. Is that a thing he does? Or am I just imposing it on him because I don't really like him? I also dislike it when comedians on TV panel shows laugh way too hard at jokes other panel members have made. That seems very Wil Anderson to me. And also pretty negative. Oh well. Mondays, right?