LGTM :)
Originally shared by Gerwin Sturm
While the activity log at is nice for keeping track of posts you +1'd it contained too little information to be really useful, so I whipped up a chrome extension that rectifies this "issue" by fetching profile picture and a small text snippet for each of the posts via the Google+ API. This only works for public posts but from my experiments it seems that only public posts ever get added to the activities anyway. The extension still needs a bit of testing and clean-up, but I'll open-source it soon :)
PS. I've all sent feedback that this should be the default behaviour without the need for extra scripts :)