This addon lets you enter description, biography, and various roleplaying-related flags to your characters; other people running this addon (or a compatible addon, if anyone writes one) can then see these values. (WoW players: Think flagRSP or ImmersionRP or whatever.)
Right now, the prefix/override/suffix/title things, and the description, show up in tooltips, and there are tags in the tooltip for whether you have bio and meta tags defined, as well as a list of flags you've suggested. Basically, if you edit your data, and then click "save", your character will show that data to other players who run the addon. If you target someone, and they have data, there will be an "RP" button above their frame. That's not currently movable, but I can probably add that some day.
/meri -e --> edit your own data
/meri <name> --> look at <name>'s data
/meri --> look at your target's data
/meri -f --> list flags
/meri -c flags --> clear flags
/meri -s flags --> set flags
The new -c/-s options allow you to change flags using a slash command, so you can create a macro that could, for instance, toggle your in-character state.
Changing target with the window open will show the new target's data if the new target has data and you do not have unsaved data.
0.6: Fix problem with checkboxes being unclickable.
0.6a: Meta/bio fields weren't displaying right locally.
0.7: Don't display previous character's data on login.
0.8: Remove typo accidentally introduced with 0.7.
0.9: Add version-checking; starting with 0.9, if you get RP data from someone with a newer version, you get notified (once the first time you see a given version, once per UI load).
0.10: Extra bulletproofing (I hope) against overwriting your data, though I've never reproduced it, update LibMerisioux to stop saving timeout information in savedvariables.
0.11: 1.9 TOC stuff
0.12: Internal updates, SL ToC stuff.
0.13: Found a case where the RP button would show up after you'd clicked off a target. Fixed.
0.14: Add -c/-f/-s.