It's difficult to write a benchmark into the constitution because there are a lot of different scenarios. If someone illegally adds Yoan Moncada and he collects stats before someone notices, they'd probably just be removed from the league barring them being mid-stroke or something. I'll talk to spittin about adding something though.
It's tough that you were on vacation, but the problem is that any subsequent offender (hopefully there are none) will look to this precedent, and it's difficult to say that the next fine will be harsher than this one because jaysblue was on vacation and you weren't.
Anyway, we should all just move on. It was an honest mistake, but a precedent has been established. Nobody wants to see you get piled on for it.