Hello @theFlower!
Surely you have created this suggestion with your best intention, but this currently exists. I recommend you to read this post before suggesting.
Currently, editing the chat name is possible, but the chat link will stay the same. For that, go to https://xat.com/web_gear/chat/editgroup.php?GroupName=YOURCHATNAMEHERE and put the password you set. You'll see an option to change the chat name. https://prnt.sc/phm7cx
The same happens if you want to delete your chat. To do, go to https://xat.com/web_gear/chat/editgroup.php?GroupName=YOURCHATNAMEHERE and you'll see a box like this one: https://prnt.sc/phmabf .