@shyhustler It's almost like every time people get together to talk in some place, there's always someone who wishes to invasively advertise their shit or just cause trouble for whatever or no reason. Algorithmic solutions might help, but they are not perfect, and this becomes an arms race, which may actually hurt legitimate users.

The only option is mop them up and raise barriers to entry (read: CAPTCHAs and closed registrations), which, again, hurts legitimate users.

Or just let the nature take its course and make peace with low signal-to-noise ratio, which also hurts legitimate users, who then leave because shouting over noise is rarely fun.