Is it against the rules to discuss non-EU immigration on this forum?

Dear moderator, or moderator... I’m actually not quite sure which one of you issued the ban, so please excuse the ambiguity in my address, but could someone please provide an answer to the question I posted above?

I was banned almost instantly—literally within a minute or two—right after I opened this thread on the "close to politics" PDF section, as per the title.

The explanation flashed on my screen for just a few seconds, stating that my ban was due to my introductory post. In that post, I had commented on the moderator's handling of two previous threads regarding the free import of labor from non-US countries into America—one of those threads had been closed, and the other had been deleted entirely.

Now, I wasn't criticizing the moderator because I wanted to pick a fight with the staff. My intention was simply to explain why I felt it necessary to start yet another discussion about importing labor into the US, given how closely this topic overlaps with those two earlier discussions (which were started by other users, not myself).

Couldn't this have been handled more simply? Perhaps by letting me edit my opening post to remove the comments regarding the moderator, while allowing the rest of the discussion to continue...

Also, I would appreciate knowing how long this ban is supposed to last.

Thank you in advance for your time and response.

You wrote a few lines about the moderation staff, but when it comes to the actual topic, you’ve said absolutely nothing—it's basically just a title. Given that you've been around this forum for well over a decade now, and looking at your history compared to everyone else, you clearly know the rules inside and out. You know exactly what’s allowed and what isn't, so I honestly don't get how you can't see that this kind of whining isn't going to fly here. More importantly, it's obvious you have no idea how to actually start a high-quality discussion thread. If you haven't figured that out yet, you might be better off not even trying.