As someone who isn’t in a guild, I can say I stopped responding after the 30th query about it…it gets annoying when just because you aren’t in a guild dozens of people a day feel the need to whisper or send random invites. It’s like door to door sales people or telemarketers…it gets annoying and something to ignore very quickly.
Let us buy vendor mats (eg spools of thread) in 250 stacks, end the excessive clicking.