I can understand that there are fewer "paid" shills since it's so easy to create some alt accounts and sock puppet all over the place.
considering how willing people are to debase themselves for pathetic amounts of btc on here, I can well believe they'd devote 24 hours a day of stirring if some alt developer gave them 1 satoshi. this place is filled with whores.
Proper shilling requires more skill than e.g. sig campaign spamming. Cheap ones would be worse than useless, would make a mockery of their shilling subject.
On the other hand many shitcoin shills are likely bagholders themselves, not needing any additional incentive other than their own delusion.