2018 edit: This is old news and no longer relevant!
In short, what is this news about?
It's about accounts that use a script to add ten thousands of deviants to their watchlist in a matter of days. Some people backwatch, that's how the script-account gains popularity and watchers (or points via donation if you want to). Even if they don't backwatch, some people will at least look at the site and may watch through your gallery or journal.
It's legal, I asked the helpdesk on this.
The problem is that the deviants being added by the script feel betrayed and disappointed. I want to inform people about this in the first place so they don't fall for those "traps". You can have a look at their gallery stats to see if there's something suspicious like ten thousands of watches. A profile full of "Thank you for the watch" comments is also suspicious.
Ideally however, I'd like deviantART to improve their security so those scripts stop working. I fear those scripts to get popular and watch-