Have online dating/the internet changed your gaydar?

I was remembering that way back when I used to go bar hopping with my best friend Jessica, people used to assume I was her girlfriend. And well, of course, particularly if we went to gay/lesbian bars. But now, there are so few gay/lesbian bars. And most LGBTQI folks meet online. This led me to think of some random questions: Do you feel like the internet/online dating have changed the way you read a room? In other words, has it affected your gaydar? And why or why not? Also, do you think dating apps have led to changes in the way people meet or communicate?