Paying monthly for keyword-to-DM is the switching trigger.
Creators we talked to who switched from DM Champ all said the same thing: the tool worked fine, but paying a monthly fee for what is essentially three fields and an API call felt wrong once they learned a free alternative existed. The tipping point isn't dissatisfaction with DM Champ — it's the realization that comment-to-DM doesn't need to cost money.