Even though it is early in the season, this seems like a very important issue to address. As you can tell from browsing the forums for a couple of minutes, and even by Blizzard's own admission, damage is out of control at the moment. What I'd like to do is compile a list of suggestions, examples, and any constructive feedback that you think would help Blizzard address the issue. We will pass it on to them and hopefully our suggestions can help them fix the issue before its too late.
Please post your thoughts in this thread and feel free to link to your blog, other forum posts, etc. We just want to gather as much helpful information as we can so that we can consolidate it and pass it along to Blizzard.
Here is an example of the kind of thing we are looking for. You do 50% less damage and 25% less healing in PvP combat. Special thanks to our mods Duckers and Slappy who came up with the idea.