Michael plans on releasing a post about bots and their affects soon, however, as it was explained to me:
Basically, the offender finds a third party service that offers traffic for less than the eCPM that Tapastic offers (that's very much cheating the system). The big problem with this is that most don't think about how suspicious it looks to the staff, don't really understand how bots work, nor consider how it effects everyone else's tapastic ad revenue.
The use of bots basically "nukes" Tapastic's eCPM for a couple of days. Which sucks for all of us and sucks for the staff to have to clean up.
Same thing with sites like google adsense. If a person is caught using bots on that site, then they'd be blacklisted for life.
Bots suck basically D:<