I have been entering sweepstakes for over 30 years and using roboform for around 10 years.
I average around 150 wins a year.As far as I know Roboform has never gotten me DQ.
Most sweepstakes are trying to ban people from entering and never visiting their web pages.
One tip I offer people is when you visit a web site for the first time to enter a sweepstakes, LOOK AROUND. You might find a freebie,a great deal or even another sweepstakes to enter.
Good luck and keep entering.
Bruce
http://sweepingwithdeerwalker.blogspot.com/