They do still need to fine-tune that code though as I sometimes found I was fighting mobs several levels higher than my effective level even though my real level was much higher than the mobs.
They really don't. Most enemies are at or higher than your effective level and it's supposed to be like that. This becomes an issue when you are soloing and can't kill them fast enough before respawning becomes an issue. But if you want to solo, you really need to pick a damage class instead of a support class. That said, what they need to do is prevent enemies from 'crossing' their intended zone.
Downscaled to level 5, I faced a level 7 veteran which is possible, with some difficulty. Retreating to get more ground and give time to recharge skills, I crossed a region boundary, downscaling me to level 3, and the veteran one-shotted me when it caught up. To add insult to injury, the enemy was a pig.
if I have to go click on every. single. link with NO way to open new tabs in your client?
In that mode, Steam is just a browser that automatically logs into your account. Just switch to your normal browser, log in and now you can browse and buy with multiple tabs. It's not exactly elegant but it's what we have to make do with until Valve decide to integrate multiple tabs.
Might this be the MMO that does away with standing right before the enemy, slashing your ten foot two-handed sword diagonally and freaking missing
Guild Wars already has the auto-hit you're describing... you don't have to wait for Guild Wars 2.