I've taken a quick look around and don't see where anyone else has suggested this, which surprises me. I propose the addition sometime in the future of a Glitchen Invisibility Skill. I see this as a highly valuable new skill for three very simple reasons.
1. Being invisible is the dream of probably 95% of the Glitch population.
2. We can already dress up as Glitchen Ninja, so why not go the next step and let us be REAL Glitchen Ninja. (Glinja?)
3. Less avatars rendered at any given time would only serve to reduce lag for everyone within a zone, would it not?
So theres my quick two cents, I hereby release this idea into the wild to see if it evolves.