Strange jumps in my rep...

Last time I looked at it that was around 22. Today when a user asked I had 58. And yes, I'm 100% sure I did not more than 1 rated duel inbetween (I have 12 wins, 6 los now).

A few hours ago I've logged on in my duel acc to test if it might have something to do with rematches, even if only in unrated and ... I'm at 88 now. For no reason. I haven't duelled once between the rep check this afternoon and night, I was online exclusively in my admin acc.

And no, the rematches doesn't seem to have anything to do with it, I'm still at 88 after some now...

According to Halberdier, In-game admins now get rep when they answer calls. So that would be why your rep/exp has went up so high.

That is correct. Every answer, +1 rep, now called EXP.
This will will solve our EXP since we don't duel as much.
Heck, I barely duel at all now.