>>149830291I don't feel like it was that common. I can only remember it happening back when the trouble with Penders OCs was reaching its conclusion, and they had to make massive last-minute changes to the story for legal reasons. Such as in pic related, when they suddenly couldn't show major characters anymore or even mention their names.
I don't think Penders has ever publicly commented on Bunnie's original line in OP's panel. Either way, the hand-lettered dialogue briefly getting replaced with a font there implies that something was changed very late into the production. Due to the context, it's reasonable to speculate that the original line hinted at off-screen sex too blatantly.