I don't think a summary is automatically put on a person's profile yet...though I haven't banned anybody since this was implemented, so I wouldn't know.
As for concern no. 2, mods are expected to leave a note showing what was edited in a user's post. I'm not sure if there's an actual rule, but even if there isn't, if there's ever a mod editing posts without leaving a note saying he did, please inform us. I'd assume for the most part, a date and time wouldn't be needed if it's just helpful editing...for the moderating edits I will leave a timestamp from now on though.