Duplicate and triplicate posts are often appearing on these pages. To replicate:
1) Post in a thread.
2) Edit your post - your edits should appear.
3) Refresh your page - It will ask you if you want to Cancel or Continue. Pick Continue.
4) Your post will duplicate.
5) Repeat step 3, your post will triplicate.
I am on Google Chrome 25.0.1364.99