If you have recently registered on new private trackers that are now coming up each day, then you might become the victim of bulk email selling & spamming. Many new private torrent trackers are opening up each day & some of them do not survive that long. Now those private trackers that die out early might be selling your email ID to other new trackers. If you have noticed then your mail might be getting spam messages from new romanian private trackers, that is because someone has sold your email ID to other tracker. This may be fine until your email ID is not out there in public, but if one of these private trackers sell your email ID to some public spammer then it would become a problem & you will start receiving more spam emails than ever. Some of the email providers like Gmail are very good in filtering out those spammy emails but others might not be that effective.
So just a word of caution think twice before registering into any new private tracker, you might become the victim of email spamming.

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