So what you're saying is that come Makeb I can get together with some guildies and we can roll lower level players with crap gear until we all hit level 55?.
No. Bolster is being changed so it works on gear slots instead of level.
You enter a warzone wearing last year's corduroy flares, they're buffed to grunt-grade plasteel armour (right down to having no gear at all in a slot and getting buffed up, hence comments about naked pvp). The idea is that these stats are not quite as good as earned pvp gear, but good enough to contribute. So if you still suck it's not your gear's fault.
Well, that's the theory anyway.