Allow sorting by any column in User Reports

[#1]

I really like the new user reports feature.  I notice that I can sort the results by some columns but not all.  I'd really like to be able to sort the results by metrics such as number of posts, kudos, etc. but right now these columns don't have the search functionality.  This is useful because sometimes I would like to see who my top users are in these different areas.

[#2]

Thanks for the idea Laura. We run into performance issues occasionally while trying to sort a report of this sort since in a large community, it can be pretty intensive. We'll look into this.