Yes. It is surprising and annoying how little these accounts seem to need to make to keep spamming though!
I'm starting to think comments should cost something like 0.001 SBD/STEEM/SP if they end their voting window with a net negative vote (a negative number of rshares). For accounts with only delegation, perhaps the source account should pay the fee.
Fake accounts? If I set up a bunch fake accounts with bots (too much work for me) they would only need to make a few dollars a week each to make some money.