Improve info shown about users in the directory

[joric3]

Is your feature request related to a problem? Please describe.
The info shown in the directory doesn't tell me much about what to expect from those users I might potentially follow.

Am I right that "posts" include reviews/ratings and comments on books, but no other activity (liking, boosting, or commenting on another status/post, shelf activity like starting to read something, lists, groups, profile activity...)? The number of posts gives only a skewed impression how my timeline will change when following somebody. It would be more useful to have the number of activities that would show up in my timeline.

Describe the solution you'd like
Personally, I'd like to see three values:

• either total activities (that would populate my timeline) or only "other, non-post" activities (i.e. "everything else" in the timeline filter, I believe?)
• posts (same as now)
• date of latest activity

I guess another value that would be interesting: Total number of books on a user's shelves (or, alternatively, just on the "read" shelf).

Also, I'd like to see a bit more from the profile description. Currently it's about 40 characters, I think, that are displayed in the directory. Increasing that would be nice.

Both adding better information about a user's activity, and giving a bit longer preview of the profile text, would give me a better idea of what to expect.