Hello! I think I can help you with that. I did recently make a reply about how one can hide their IP with a step to step plan on how to, if you firmly follow that one (which you should be able to find in new posts) you definitely will be able to hide your IP from those haters you're talking about. Though like I saw in that post a way to get your hands on the IP adresses of people is by posting a ip grabber link in your room and forcing who ever enters to click it and if they don't just straight up boot them. Like don said on that post, iplogger.com is indeed the best website for that. And to make sure they are not using a vPN to hide/fake their ip into a whole different one which you're pretty much nothing with, use the website that again, don also said to check if it's a VPN based ip which is
www.ipqualityscore.com/vpn-ip-address-check. Know that for the websites and sourcer despite knowing them already, I refered to what don said so if this works out great for you make sure to thank him not me.
Good luck!