u/Opening-Dish8114

I recently made a post to celebrate reaching a milestone and thanking users from that sub for the tips they shared that helped me reach it. I read the guidelines before posting to make sure I did not violate the sub rules.

But my post got manually removed two days later with the post flair changed. I initially set it to achievement, but when it got removed, it was changed to question. I messaged the mods to get an explanation but received no reply. My post was not popular at all only received 2 upvotes and 1 comment at the time it was removed. The sub is not big or popular, so this amount was kind of average for that sub.

Can any mod enlighten me on this issue? What are some possible reasons for this?