I won't go digging years back, just mentioning current ones:
notbatman the nazi flat-earther
r0ach/realr0ach the nazi (seems like a pattern) metalist
cryptohunter the undead legend, could be a nazi too
I wouldn't call BADecker a troll. Despite being a lunatic he doesn't seem to be aiming to anger or provoke other users. There are some better candidates in P&S but on the other hand I'm fully aware how those topics make people say stupid things IRL, so I'm willing to give them the benefit of the doubt and assume they're just opinionated idiots, not trolls. Perhaps "involuntary trolls".
rebal15 1.5
alevlaslo 1.5
JorgeStolfi 1
digaran 1
King Scorpio 1
notbatman 1
Quickseller 1
Anonymint 1
B1tUnl0ck3r 1
Phinnaeus Gage 1
Well just to be sure
batty gets nominated, here's my vote.
Because you know, any
troll who can sustain a
completely nonsensical, ridiculous thread for 4 plus years, well, he takes the cake. (thread started on April Fools day which obviously is no coincidence and is sadly, one of the longest running threads on bitcointalk, so yeah, the general public who stumble on it just got their suspicions confirmed that bitcoiners are all lunatics)
...And as an added note, that
pious delusional, anti-vaxxer, evolution denying idiot, BADecker, gets honorable mention....