It took me quite a long time to understand how much of this actually works.

I try to save the ones that seem to have at least a little value, and then maybe I'll sell them at the end of the year... end up with a few extra Hive, if I get lucky.

The ones that seem pretty well worthless I typically burn (send to @null) just to do my tiny part of get them out of the ecosystem. Whether it actually makes a difference remains to be seen.