Speak for yourself; I only ever see it on system startup. I only reboot once every few months (and it doesn't respond to waking up from standby), but there's a new Adobe security panic every two weeks or so, so that's not really acceptable. Plus it opens as a pop-under window for some reason, so I'm generally unaware of it until I've opened a browser, which I'll then have to close and reopen.
The 'stealing revenue' argument is definitely valid, but in Adobe's case it's such a hateful method that I can't sympathize at all.