I'm pretty sure Theymos isn't willing to add in updates to the current iteration of Bitcointalk, besides security updates.
Seriously though, I think you're better off just creating a text file and store it on your cloud storage(e.g. Dropbox, NextCloud, etc) so you could access it on multiple devices. I don't think there's a need to complicate it a bit.
Probably depends, it sounded like he had planned to add the reporter badges to the forum before the new iteration, but I'm not sure of the status of that anymore. Plus, we don't exactly know when the forum will be migrating to the new forum software. It's safe to assume somewhat soon due to other forums now running the forum system, but our version of the forum might be a little different with Bitcointalk specific features.
Personal notepads on the other hand would probably be very low on the priority list like Hilarious suggested,