Maintenance is fine, it needs to happen so that the servers don't corrupt and everything messes up, servers always need a refresh to keep them working in tip top shape. On the lodestone they do tell you what the maintenance is for and why it's done just have to look that's all, they even give you patch notes if its for a patch. Threads being deleted is because its the same posts over and over again and also some threads break the ToS or are of an insulting nature.