I would prefer to stick with original param.sfo files. The page does pretty well at displaying most symbols (can be hard to search for though - BLES00736: NINJA GAIDEN Σ2)
This is atually the biggest problem I am having now, is that so many people modify their param.sfo files (mostly just PS3_SYSTEM_VER but clearly titles as well).
Once you upload a file and the file is a proper ps3 game I get a copy of it. If the game is in the database (and the md5 of the new file is different from the existing entry) I will also get a copy.
This is my best bet against modified param.sfo files. I have an offline tool that parses all the uploaded files, and I can pick and choose which ones to add/remove/replace from the online database.
tl;dr Just keep it to unmodified params.sfo files.