Google reserves the right to change your title tag & meta descriptions, to better serve relevancy for Google Search (Called Keyword in Context)
I think what Matt Cutts is saying:
That if you care about your website, your site must be optimized inside and out. Leaving no title tag or description tag unturned. If you are being lazy by cloning your descriptions tags or using the same title to tag all 300 pages of your site, you’re not going to make friends at Google. If your CMS system spits out garbage meta’s or boiler plate nonsense, you’ve been warned.
Frankly I would not want Google to randomly choose me a title tag or meta description! No offence, a machine is still a machine. Bottom line, fix your pages, get a human to do it!
What should I do if Google is changing my Title Tag and SERP listings?
Say your most popular article has an important subsection that people are consistently returning to. Does that mean Google will rename my article to that section or H2 tag? What is the threshold of this happening for a SERP listing.
My advice would be to rewrite that page or write a new page to better cater to that keyword in context.
Go with the proverbial popular flow. Since Google is being kind enough to make your articles more relevant, it would be nice if you could track these changes to your SERPS to take advantage of this.
I’m unaware at the moment if there are any particular tools that can accurately track modified title tags, this is something to look out for. Any Vendors out there? Feel free to plug your 2 cents on this.
