I’m not sure what you think of this idea, but it’s something I thought of.
Perhaps for TL0, you can use 100% AI-generated titles, since these users are newer and have less experience.
Then for TL1, you encourage them to write their own titles while still leaving it optional (in which case AI does it) by a toggle/checkbox.
For TL2, since they’ve been on the forum for a longer time, you can remove AI-generated titles completely and let them write their own titles.
What do you think?