There appears to be many places, where the text is confusing, and if so,ought to be changed to be more specific.

Here's one of them.

'Since last visit'

I have been told  it's the time of the last log in. and aside from the fact if no logging in occurs it just increases, if thats what it actually is, why not change the text to 'last logged in'?

I think its pretty meaningless either way.