I just disabled the hud-service because it was taking up 2.8 GiB of my computers RAM.
I understand that it is part of the unity ecosystem because others are posting solutions along the lines of installing xubuntu etc. However, I like running stock-ubuntu as this tends to make asking for help and diagnosing issues easier (just my opinion).
Could someone explain to me what this service is responsible for, and thus what I am sacrificing by disabling this service?
Possibly Related Info
I use synapse for searching/starting applications, and always have the unity-side launcher/dashboard hidden and never use it. I switch between applications using the compiz ring-switcher which is set to display everything from all workspaces, and the desktop "wall" combined with expo.