Best: just how I started on here, trying to find song lyrics, and doing so very quickly and successfully. Beyond that, genuine camaraderie, meeting other Mudcatters, fun, jokes and those odd "Eureka" moments when you suddenly discover that another Mudcatter under a certain pseudonym wasn't all who you thought he/she was!
Worst: sick and tired to death of all the slagging and name-calling that goes on, threads that started on a sensible and valid music topic being turned into a private battle between 2 or 3 people who have nothing better to do all day than sit in front of their computers waiting for the next post to come in, while they conjure up increasingly competitive insults. The abuse that goes on would not be tolerated on other websites, and might end up in law courts. "Never say online what you would not say to someone face-to-face" is my maxim.
Question: why, on a music site, do we allow ANY political threads? Plenty of other places for people to vent their fury and diatribes.
My 2p.