The owner of SF and that network of sites is notoriously ban heavy - a lot of bans there have been inconsistent, or never explained.
Based on what you've provided, and your profile here, it's probably a mixture of the username + what you mentioned in the interests section, and anything else on your profile along similar lines. Especially having those things together could be mistaken for someone trolling.
Sysnative for instance is "PG13", or "family friendly". For a user who'd just signed up we'd probably remove the "ur mom's house" from the location, as although it's mild it's generally a less family friendly joke, and the username would raise a flag for us to try and work out the context of it. "Family friendly" here generally means very safe - aka no one would be upset if you said it in front of either their grandmother or their niece.
From a moderator perspective - we have a lot of users sign-up here, and a small portion are either spammers / trolls etc, so certain things will flag an account and get it more likely to be banned.
