As a druid I go anon when I'm in a group and we have moved to whatever fight we plan on doing that evening, or else I get tells about porting someone here or there, or if I'm doing a lot of AFK solo stuff where I could be AFK for 5-10 mins at a time and don't want people sending tells about buffs/ports/etc and thinking I'm ignoring them because I don't respond while AFK. (amazing how even using AFK people still spam request in tells
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Other than those times I usually am not anon and more than happy to help with buffs, sow or ports.