rude to vendor in solB?

[lethstang]

Hey guys I was hoping to get your opinion. For the past week ive done royals/bnb etc. Most times we would take turns gating to LS to vendor and running back in. It worked like clockwork.

Today im in royals, and after a bit i was informed id be kicked if i vendored during group because it was insanely rude. I...didnt know what to say.

Whats the rule of thumb here? I certainly dont want to be rude?!