I wasn't going to post this, which I wrote earlier to reply but Storiale on that thread confirmed my suspicions.
Regarding the January SERPS thread comments also. [
webmasterworld.com...]
Although initially an observation, the upscale in rewriting meta titles could be mobile related again. As link titles tend to be shorter so would be the natural and easier replacement. Does that mean title field should be shorter and less than 56/60 now so as to keep meta tittle in place? I'm not a control freak but I wrote the title for a reason...
In the past several months I've seen the bigger sites switching to the mobile schema of shorter urls and category urls for mobile and or G choosing to rank them higher. So would be the natural path for titles to be shortened automatically too. Not that I like link title replacement. And I still have long title metas that rank but I'd need to check if they have an on page anchor kw link that G could auto replace with.
For the record, in fifteen + years I haven't changed the way I write and still do the same on page keyword ratio - although with the thesaurus algo I do use more varied similar terms and build in associated keywords in the group to lessen repetition. I haven't stopped doing meta keywords because some say it's irrelevant and I don't link build whatsoever as I hate it.
But this link title inclusion has thrown me a little. Why? Because I don't know whether I should be including an external / internal link on every page with the keyword in and if it's a ranking factor. These changes aren't wholly due to inbound links from other sites as I don't have many.
I sometimes do and sometimes don't include a keyword anchor or mixed anchor including 'click here' etc. but as to whether should be ensuring a keyword anchor link on page for external and or internal, I'm not sure.
A year ago when first noticed G ranks changing based on internal and outbound keyword anchors, I did try a mixture of a page with internal and external, page with just external and page with just internal but it just confused me more so just moved on. As I was sure G was penalising me for simply changing the page links instead of any actual text update.
It got to the point where article link shape linking pushed me down the ranks rather than up. i.e. KW article one, two to one, three to one, four to two and three, five to one and four and so on. New on site articles to increase primary keyword page visibility had no real link juice effect. If anything other activity has had more sway on that front.
But back to title rewriting based on link, if I was a capitalist conspiracy theorist, I'd suggest sites that get high CTR may have title changed so those who pay for adwords and are able to write specific titles, would get the click instead and in turn G increases profits. But it could just be a change for mobile search.