nomis5 - 8:28 am on Sep 17, 2013 (gmt 0)
For the records:
- Google did not like the re-indexation of the 260 pages (90-95% traffic). Traffic vanished again.
- I noindex these pages again, and traffic came back.
Reading the above and other comments you have made I guess that you are not giving your changes sufficient time to take effect.
I personally would have re-indexed 10 pages or so, beefed up their content with totally new and relevant information, then wait three months to see what happens.
There's no easy way to make large changes to a site, it takes work, planning and a lot of patience to see what does or does not work. Easy, quick fixes made for a week or two then rolling them back is the worst way to go forward.