Topic on Talk:XTools

This should be fixed.

Why in section Admin Score edit summaries used in the article space and edits to the article space count is same for all users?

Edit summaries are measured only in the mainspace because that's a strictly collaborative area. For instance you generally aren't expected to use edit summaries in your userspace.

Your second point sounds like a bug. This tool admittedly has not been given much attention. I'll try to look into it soon.