Yes. Since seeing some of the latest feminist theories online, I avoid saying anything to women I don't know. I'd much rather avoid the risk of a negative outcome than gamble on the small potential for a positive, friendly interaction.

Edit: I'm not sure whether this is a good or bad change. Perhaps it is in fact better to avoid the small chance of great harm by sacrificing the larger chance of small benefit.

Downvoters: This is not meant to be a political point, just an observation of my own behavior.