The opinions about the Russians seem to be mixed.
When we were in Goa in December, the shack owners and restaurant owners couldn't do enough for them, to the point that we were ignored.
We were told that most of them were first timers and were spending most of their money on the beach, buying bits and bobs from the sellers and having lobsters etc at lunch.
There is a restaurant just outside of our hotel where the Russians were given preferential treatment, although that didn't stop us from going there.
We were told by one shack owner that there weren't that many Brits out there and those that were there were not spending that much.
We have never had any problems with the Russians, those that speak English are very nice.
I think that the Indian Government should be trying to encourage all nationalities to go to Goa and not just focus on the one.