I’ll nominate @Beckdawrek - there’s always a positive energy they provide to a thread, even if it can be a bit over the top at times. And they’re good at laughing at themselves as well.
Second, @Stranger_On_A_Train - no matter the subject they post on, it there is a great deal of deep thought involved, even if (on non-science matters) I don’t alwwwaaaaaays agree.
Oh, and shameless plug for my thread in a similar vein - which has a lot of similar praise:
Designed for positive feedback only.