In my experience as staff for this server the amount of sub-par antags I have been able to punish into a good antag is exactly zero. Its not really an effective way to handle it because how it tends to work in reality is a player thinks up X or Y idea and it just.... doesn't really work that well. You can wax philosophical about "the player should know better" and while there's a grain of truth to that we all have bad days. Antagging is incredibly difficulty and its generally more effective to go back to the drawing board in these cases instead of dishing out a ban. I do not think dasfox's ban history is relevant here because they where banned for ganking, metagaming, stuff like that. All the stuff that is explicitly against the rules. A good analogy here is that type of "play to win" antaggery is TOO MUCH and here we have NOT ENOUGH. I see that alberyk had a conversation with dasfox and i imagine it went somewhere along the lines of "Hey this didn't work try this next time" or something.
On top of that they have one single other note on their account since their unban. There is no such thing as "being on thin ice" when someone appeals a permaban. I accepted their appeal because i think they have a reasonable chance of being a good player. We are not sitting here waiting for one mistake to send them back to ban land. TLDR Alberyk's judgement seems to be in line with how we generally conduct ourselves as far as staff actions are concerned.