Syncing of comments seems to be... sketchy. So many things can cause it to not function, or not appear in a consistent manner. Definitely something that will need improving over time for regular users to be able to understand.
Not sure I'd say RED is easy to get into... and its definitely not for newbies to private trackers. I'd suggest Orpheus as being easier to get into, more welcoming to newbies... and easier to maintain ratio.
Taking a quick look at TG... rules say nothing about maintaining a ratio. And I can't see anything in my account about it.. its effectively a ratio free public torrent site? Same as TPB and 1337?