Fast clicking > Holding a mouse button

Why is holding a mouse button penalized by slow movement, since the same thing is achieved with really fast clicking, and no movement penalty whatsoever?

It also prevents random lockups.
What's the dealio here?

I dunno if you mean what i mean, but it happened to me a lot that i clicked at monster and my char run around them without attacking, or keeping pressed it simply did noty attack and i died.

The targeting and attacking system seems so screwed up. Also, when you click at buttons in game, the arrow cursor select them only in the lower part of the button.

I don't know, i have the feeling it isn't working properly.Now ofcourse some geniuses will come here writing "skill issue", but a part from them, please give an eye

Yes, I had that too with mercenary. Sometimes he just doesn't want to shoot. Sometimes he also walks around with an empty crossbow shot, then when I want to fire, then he reloads.

But my main point is that clicking really fast doesn't have the movement penalty, while holding a mouse button does. So they should either remove one or the other.

Kinda same thing with resonating shield. You effectively get x2 attack speed by tapping it (and no it's not a request to nerf it, in fact it's still shit even with x2 attack speed).