wishlist...

Private labels for accounts - i want to label an npub as "Fred" or "Julie's Teacher" etc and not share that with the world, and have it stick in the event that Fred changes his display name to Snake Plissken.

Private up/down vote of posts as a skim through, with potential to review who im up/down voting the most and ability to see more or less posts by those accounts (local algo or paid service algo)

Paid search to let me filter messages for a date range, of a given account, and containing a given phrase. This is full text search, with fuzzy logic, not just tag search which acts as a stopgap and not reallt supported at all in any well known clients

Zapless polls. I started on it and shelved it to work on another project. Theres no good reason not to have polls that dont require zaps. The die hards over only zaps and no likes are really just pushing for alternative esoteric mute functions.