It's only available to supporters to:
a) provide them with a bit more of a bonus.
b) keep the number of testers relatively low so reports are able to be handled by the small dev team.
The whole community aren't supporters, else I would be working on osu! as a full-time job
![Razz :P](https://osu.ppy.sh/forum/images/smilies/58.gif)
. Supporter tags are not "given out" except as prizes. (this is a response to a statement made before previous posted edited their post)