Well, it depends on how you look at it ig? For the victim it might seem to be a big case, after all, they are trying to recover from their gambling addiction tendencies, anything related to gambling could be seen as very sensitive to them and could lead to a lot of repercussions while for the average joe, it might just seem like it's nothing. I'm more on the side that OP is making this a bigger issue than it should be, could've simply, as I recommended, turned off email subscriptions and whatnot. Now if he did, and he still got sent gambling-related stuff, then THAT'S the time it would become a really big issue.