I couldn't find a webmaster tools area for this post and thought this forum was most fitting so please feel free to move it if I'm in the wrong area.
I'm just wondering on peoples views on the importance of carrying out any html suggestions that Google's Webmaster Tools show. Google say that it may improve user experience and rankings if these suggestions are carried out, has anybody found this to be the case?
I'm particulalry looking at duplicate titles and descriptions. If you have many occurences of these, does it a, harm your rankings and b, will you have improved rankings if they are corrected?
I know that ultimately every page should be unique in its own right but for large product sites with thousands of pages it can be very difficult to go through each individual description and title.
Just looked into the HTML suggestions for one of my sites and found duplicate titles. This came from using an older page as a template for new ones and I forgot to change the title. As the title contained a city name, I herewith found the reason why my new page had a 100% bounce rate. - So, in my opinion: very useful.