crecente, 
@tiago @vbuendiar @LukasBrausch
😐 Yes, you can block them.
😧 And then block the hordes of their followers responding to their whistle.
😶 ... and then quit [platform] rather than deal with this.
These technologies are easily / often used to exploit power imbalances.
This is why it is a use case that must be considered -- even if we have not experienced it ourselves.
There are many people who HAVE experienced the above.
Requiring quotes to be opt-in addresses this problem.