It's obviously an open-spaced module.

You can search to Lemmy Explorer: https://lemmyverse.net/

Bitwarden would be a good fit for what you are looking for, especially the cross-platform aspect. Keepass-derived solutions typically require trusting multiple developers, whereas Bitwarden is developed and maintained by a single team.

Can't wait until they start asking about his accomplices.

From the native web app, no. You can only save the post for going back and look. Notifications only show for responses to your posts and comments.

Next: voicebot simulating concerned grandmas willing to buy gift cards...

Wouldn't Aunt Sheryl happen to have ruined the poster's relationship by marrying her husband?

And forever dashing little kids' hope and dream all over the world...

You can download your account settings, and upload to a new account on another instance. https://github.com/CMahaff/lasim