I remember a couple of years back, people were warned (by a few particular vocal people) to not use too many collision senders and receivers because not only do they make your avatar take forever to load, they also can cause people with potato PCs to crash and burn.

Has this changed now, especially with how Avatar Dynamics itself adds in what I assume are much more performance efficient collision sender/receiver scripts? One of my little nitpicks back then was how (long) hair and skirts would clip through the avatar when you're walking in a particular direction.