The only "crypto villain from a previous era" who deserves a path to redemption is Mark Karpeles @MagicalTux - precisely because he's the only one who's not clamoring for attention asking for one. He's just quietly doing interesting stuff.

Compare his twitter with a weaker soul:

Karpeles wasn't malicious, at worst he was just incompetent

Also it must have been insanely difficult running a BTC exchange in 2013, given the limited tech stack at the time, and basically being in a regulatory no man's land

Grace Bay TKCA 1ZZ, Turks and Caicos Islands