I don’t think there is anything wrong with bumping the thread every now and then, but you literally did it twice a day sometimes and once every day all the time, that is a bit excessive
Also you could be a little bit smarter about it and just keep pushing the thread with more creatire messages like :“Hey everybody, we reach 50 members already, I hope we will get many more soon”
Your pushing could already be counted as spam
I guess many people already muted your thread, but for new players comign to the forums seeing the same thread gt pushed everyday is a bad experience IMO.