I guess I will give my opinion too!
As Dark pointed out most other Eliters leagues play on rated tables. They have high and low rated players paired against eachother often and no one complains about it, because that is just how Eliters works in their league. No one complained when I played in GinY and I was a provie playing against red rated players.
The only reason we, in Pinoy, usually play unrated tables is because we don't often play full games because they take too long. According to Eliters help topic #3151 "All tables should be rated and protected unless the TD directs otherwise."
When we spam rules I believe everyone usually spams unrated as part of their rules which is following with this rule. Any time a game is less than a full game in PinoY it will be unrated, but if the TD does not tell you otherwise and it is a full game, per Eliters rules, it should be rated. This applies specifically to Regular games as the page says Reverse and Stick the Dealer will be on unrated tables.
Its not often that this even matters, so dont worry about it too much. Check with the TD before hand to verify their plans if you are unsure and/or concerned.