Because your post is not about drumming in general, but news about you personally. If you read the subforum descriptions, you'll see that this here is the place to talk about who you are, where you live, your playing, your gear, etc. If you want to talk about your personal life and where you are moving to, this is the obvious place to do it.
Also the thread title was edited. If you read the posted rules, they say "Please use a subject for a new thread that explains the point of the thread. 'Hey, check this out' or 'What do you think' or '????' does not offer any information and isn't likely to get the response that you wish, and vague or misleading titles will be modified." Your post was titled "My Big Announcement!," which obviously is literal clickbait. And on top of that, the only thing included in the post was a link to Facebook. No big announcement, no information, just a link to get clicks on your social media platform.
Also also, the posted rules explain that the threads will be moved, edited, etc., at the moderators' discretion to keep the forum organized, and you are asked there not to discuss the moderation of the posts here in the forum, because as you can see there's not much more boring than a moderator explaining the dull aspects of the job while also pointing out that had you read the rules this post would have had an appropriate title and would have been posted in the appropriate subforum to begin with (and maybe would have included an actual Big Announcement!).
Most of your posts on this forum are to discuss your videos, your gigs, your social media, your playing, and your gear, all of which are perfectly fine, but when you don't actively participate in a community other than for self-promotion, you tend to miss out on the ins and outs of how that community operates.
I hope this answers your question.
www.facebook.com
