Good attention or bad attention, the issue is always that certain people will want ANY type of attention.
If your convention is doomed to fail with only 4 people in attendance, if you haven't released your Abbadon module, if you haven't shown anyone a copy of your Star Frontiers game yet, if you lack even the most basic of investors/merchants for your con, if you aren't even registered with the city as a convention, if you are about to lose a lawsuit waged by billion-dollar Wizards of the Coast/Hasbro, if you harangue twelve-year old girls online when they are on a YouTube channel, and if your number one selling item is cheap plastic dice that you buy at Dollar General for $1.00 and then resell for $10 on your website......
You're gonna take BAD attention instead of good attention. Losers never get tired of losing.