BaM's are pretty good and at this point I'd go as far as saying that most classes are somewhat balanced (some may beg to differ). What I meant about kaisers being a strong class is that they really have the potential to outdamage most of the other classes by pretty much spamming a single skill while having access to a teleport type skill during morph. Also, many people hopped on the kaiser bandwagon during the first wave of 5th job skills because of how powerful it was. Even now, things have hardly changed and kaisers still have access to Ryude's Sword which albeit not as relevant due to the lvl200 weapons, is still an endgame weapon that outclasses any fafnir/absolab/sweetwater.
tl;dr: kaisers are strong and "good" kaisers aren't noteworthy
Kaisers are just a strong class. There isn't anything special about kaiser players even if they solo some mid-game bosses. I'd give a half-hearted clap to anyone topping the dojo rankings, or soloing some end-game bosses, but other than that, there really isn't anything worth boasting about.