I understand being able to type whatever into the titles can be abused, but I don't think I've ever seen a slur in a title on the app. Not being able to say exactly what your listing is for kills fireteam finder for 50% of listings compared to the app. You can't say what boss you're on if you're filling a spot, you can't say the strat immediately or if you need a specific super, you can't even mention if you're just going in for early chest in Vault/Crota/DSC.
I think the tags are super useful for general info, but you need to be able to just put down specifics or else fireteam finder is gonna be a huge miss and the app is still gonna be required for most things AND PLEASE DO NOT neuter the app by removing text input.
This is a less major issue than the one above, but also having the option to make default setting choices would be super useful.