Looks like the subject has been brought up before, but to no avail. I think Dropbox's success was built on word-of-mouth advertising by satisfied customers to friends and coworkers about the simple reliable service provided. I've been paying my $100 or so annually for as long as that level of service has been offered by Dropbox. However, I'm no longer telling anyone about trying Dropbox because it has become so incredibly annoying to go to the website to do a simple task, only to find a virtual MINEFIELD of Dropbox self-advertisements. It's now very difficult to find the link or function you are actually looking for to accomplish whatever you neeeded to do. A paying customer has to be extremely careful not to click on anything that will lead to yet another solicitation to try Dropbox Business or Dropbox Paper (whatever the hell that is -- I know I'm not interested!).
Not only am I no longer telling other people about how great Dropbox is, I'm actively looking for an alternative that does not abuse it's loyal customer like Dropbox has been getting by with doing for quite some time.