Spammers/Plagiarism/Nonsense content is what is frowned upon here. Other than that, you can freely change your views with one another here. Just learn how to accept a defeat when an opinion of yours is defeated by another. It's pretty much how like a debate works, both sides attack and defends and by the end of it all, both sides learn new things they never knew before. If you're still honestly scared, start lurking for now then. There are a few users here who started lurking for a few months before starting to post useful stuff and well, it worked quite well. The youngest member to hit 1k merit was one iirc, currently at Sr. Member rank.