Gregory's Server
If a post gets flagged by x users as #advertising it should be officially labeled as advertising. If an account accrues y officially labeled posts in a given period, the account should be labeled a #spam account.
That's my current opinion on how to protect servers from the flood of corporate spam that is imminent while simultaneously protecting small #makers selling #crafts, etc.
Then again, protecting #search results from spam might require a heavier hand. #IMO