I hear lots of complaints that "Autoaim turns flourish combo users completely around mid combo and can kill people behind them"
Um, HELLO?
1. Flourish combos have always been able to be changed 180 degrees in between swings
2. If you haven't noticed, auto target doesn't target people you are not facing.
It's not hard to hover your mouse over someone who thinks they dodged your first attack and plunge the second, more powerful attack straight into them.
If "combo spammers" are so easy to beat, then why does everybody have a good old whinge at people who utilize the full combo? In the time people spend whining about combo spamming, they could have shut their trap and killed the person.
Spiral Knights practically is a console game. It's inspired by a variety of console games and controls like a console game. A lot of developers and moderators, and not the least players play this game using console controllers, myself included. The lack of a crosshair makes AT a necessity to aim at enemies with any sort of precision using controllers and playing with stuff like arrow keys. A lot of people do that too.
Not everyone even have a mouse to play the game with. Some people are on laptops, and trackpads are horrible for aiming around in games. Some may even prefer to not use a mouse even if they have one. I have several friends who stick to gamepad-friendly games on PC to avoid stress on their hands. I do the same simply because I like using gamepads better than mouse/keyboard.
Auto-target cannot be removed because it would reduce accessibility. Since some very powerful weapons are hidden behind Krogmo coin walls, reducing accessibility even in just Lockdown is not an option, either.