the fact that i am the most limited class as assassination. i HAVE to use daggers and nothing else. I HAVE to make sure i have my poisons on (and i've seen a blue recently respond to poisons being fine the way they are, which is a load of bull and i'll explain it later). i HAVE to be behind the target the majority of the time.... compare that to a mage/boomkin/lock where you can sit anywhere and press buttons and do damage. as ranged i lose a lot of dps by having to move and not being able to cast(or not cast as much/as powerful spells) but my rogue has to keep up and is out of range all the time.
how many other classes have those restrictions? maybe feral druids since they're wannabe rogues? they still don't worry about poisons or using a very specific weapon (i know they will once 4.2 hits and str doesn't give the same AP as agi for them) but no other class has to follow the rules so closely. and you only get 1 vanish per fight meaning that stealth, which is a strong suit and has half the rogue attacks, is simply useless in boss fights. but really, a rogue that isn't behind a boss loses half their skills, lose the poison and you have like 1 or 2 things you can do.
every other dps is much easier to play and not as restricted in fights.
as for the poisons, the blue made the remake "i remember when we had to make our own poisons" or sometihng to that effect implying it's easier now than back in vanilla or whenever they changed it.... that's still no excuse. poisons take bag space.. they removed arrows from hunters and shards from locks... yet rogues still need poisons... and like 5 or 6 kinds... why aren't poisons just spells? even if it just used a poison reagent it'd take 1 or 2 spots but i generally have 4 spots taken up. but really is a spell not just as easy to implement? i man, DK's have runeforging, they put it on and it's always there, they don't have those instances where halfway through a boss fight their spell wears off and then they can't do their main damaging attack anymore.
rogues can be fun, but in PvE they get beat out too easily from by essentially all other dps. in PvP they've added so much self healing to all the classes to really make it so you can kill anyone solo anymore.
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"...and they'll say "Hey, Look at him!, I'll never live that way". And that's ok they couldn't anyway..."