(OS X) Dropbox consuming a lot of CPU whenever any file or folder is changed anywhere

I've had this same problem with Dropbox since 2014--and after being ignored by Dropbox tech help, I finally got a reply only when I flashed by daytime job description and business title. I'm running OS X 10.7.5 (scared to upgrade for fear so many more programs will "break"--but that's another issue).

Solution in early 2015 was to downgrade to Dropbox 3.10.11...but for some other reason the "Max-out CPU" issue has returned. All the behavior you all have described fits my machine, a Macbook Air, 256GB with Core i7. So the machine has plenty of horsepower.

I was so frustrated at Dropbox last year..and my paid, Premium account...that I swore I'd find another cloud service. Looks like it's time to make good on my vow.

Astounding that so many Mac users could complain about the same problem with no response from Dropbox. 

UPDATE 12/2/15:

I received a response from the Dropbox team (and I suppose so did others on this thread) which was very apologetic and suggest a number of mitigation strategies. I hope they'll post their response publicly.

However--I spent several hours recently meticulously deleting symbolic links. This was something this forum (or another one...I checked so many!) had requested. I used Terminal with the find -l command (when pointed at the proper volume/directory)

find . -type l

I found hundreds of links, mostly in Pictures folders. Used Pathfinder to delete 'em and also Finder to look at the source. I even used Spotlight to verify that a version of the original (same file name) existed elsewhere.

Anyway...bottom line is I eliminated maybe >85% of the symbolic links in the Dropbox folder and the "100% CPU" problem seems to have died down. Will watch and advise here.