I think when he says that he means if you have to ask questions on how to set it up or how to fix your bootloop (when you prolly just forgot to wipe) don't install. He doesn't want to have to walk every person who doesn't understand how to set up swap or how to remove or add app through the processes. And i totally agree with him. Many rom pages get cluttered (over 200 pages) with a bunch of useless crap like how much swap people or using when they should be posting logcats or reporting problems. Much stuff like setups vary on what and how the user uses the phone for. So the chance of one person set up will prolly only work about 5% of the time. See even this post is useless but you asked so i answered. Again this is my opinion on why he said that.