Do you think bike frame size is less important these days?

That excludes a whole bunch of people who don't spend £300 on plastic wheels and cannot afford more than a budget bike but still want to ride, without pain or problems. There are people on here who constantly equate acceptable levels of comfort with expense; cycling has always, and should remain, for everyone.

all you need is an experienced cyclist (or a good LBS) to look at you sat on a bike and riding it. if there is a fundamnetal change needed it's usually obvious to spot. this will get you close to a good fit. you can't do this online however.