Dear People, I was running the open sourced phpBB platform for our Discussions. Unfortunately some spam was attacked and lost the access and data too. Now I would like to switch to the paid platforms and short listed to XenForo. I would like to clarify few issues before I go for it. 1. What are the server/system requirements? 2. Can I register a new URL and upload this software to it? 3. Is it user friendly to manage? 4. How about spam prevention? 5. Can we take a data backup frequently?