How did Google not realise when they launched Google+ that URLs that end in ridiculously long strings of numbers (107350252619396782277) was a poor idea? Now it feels like they're adding a sticking plaster to fix their initial design decision.

Google+ on the whole seems quite poorly designed from a UX perspective. Most people seem to use Google+ like a blog, but the two column card layout on the desktop (three columns on some Google+ sites) makes it impossible to read posts in chronological order. This is so blazingly obvious, one can only wonder why Google went ahead with this pattern. If the site is optimised for mobile (which seems to be the case), why do they push the same design to desktop?

The way comments open up in a small scrollable panel also makes for a pretty miserable experience on the desktop. As does clicking a tag and having to explore everying from within the constricted space of a card (again why do they push this pattern to desktop users if it's intended for mobile users?)

Can you actually add titles for Google+ posts? It doesn't seem so. This means you redundantly repeat the name of the blog author as the title of every single card/post.

And what's with the bizarre gigantic image at the top of the page that only reveals itself when you scroll to the top? Was this meant to be a delightful surprise feature? It just feels odd.

Finally, there is a button on the left-hand side of the page in the header. It looks like a button, it's shaped like a button. But when you move your mouse pointer over the button, a menu appears automatically (on rollover). If it's meant to be a rollover drop-down menu, then don't make it look like a clickable button. As always with Google and their UX, it's one step forward, two steps back (IMO).