Reddit’s decision about 3rd party apps and API changes actually made business sense. Not only was their content being pilfered on Reddit’s expense, but a decent portion of their user base were using 3rd party apps that didn’t collect as much data nor serve Reddit ads like the official app. At the expense of losing a decent portion of their community, moderators, and any goodwill their userbase had towards them, Reddit now has all their mobile users on a single, add ridden app that they own and can collect as much data as they want going forward as well as ensures that they get paid for AI API usage
Without any crime to suspect you of, they might detain you and question you. It’s not uncommon for people to turn themselves in for crimes, and there are legitimate reasons to do so especially with a lawyer, namely to get out on bail easier, avoid having the police raid your home or place of work, and perhaps used to sway the prosecution for a more favorable sentencing, but if the police have no clue what to even charge you for and they can’t figure one out, they’ll just be confused and frustrated, which is a dangerous combination for police