I am seeing these title edits for the last 4-5 months on google. But I am not sure whether google is doing the right thing here.
Why is google doing this at all?
They do this not to improve the ranking of pages for which they do title edits, but to help click throughs to them.
But should google be doing this at all?
I would say NO. Many website owners may like this change, if it improves their traffic but there is also a sizeable population of "TheMadScientist" type! In this case, he wants to title his website with his brand name.Perfect, as he is the website owner and he is the best person to title his pages or website. Likewise, if he wants to call himself "TheMadScientist" on the web, that is how google should show him to the world.Google shouldn't be adding his name and telling the world "This is xyz who calls himself TheMadscientist"
Google shouldn't be doing anything at all on title edits! If a page has not been titled properly, it is the page owner's problem.He/she has to sort it out.Why should google help in this case by doing a title edit?
Well, google might argue it does this for the sake of its users.But all google has to do for the sake of its users is to rank the page correctly.Don't indulge in anything more than that.Don't try to help click throughs for a page. I know that you already do it with meta description tag and now you choose to do it to titles too! But titles are far more sensitive than descriptions and google should never change others titles.Infact, Google picks the description from the page and doesn't alter them.Why do they want to alter titles?
Google has to call TheMadScientist as TheMadScientist if he calls himselves as TheMadScientist and not because others suggest that he is TheMadScientist.
I strongly feel that Google's job has to end with ranking a page. Improving click throughs is the page owner's problem. You are already helping them with proper meta descriptions but don't mess around with titles, which are far more sensitive.
Google already has too many spams to handle and they would do well to spend their time in tackling them rather than wasting their resources by doing someone else's job.