Some are upvoting because they share the mood after the SteemFest, but many, most likely just because it's easier to vote for author who is maybe not greatest, but at least not bad, than spend time searching for unknown authors with their yet undiscovered content.

Surprisingly my post about special discounted flights didn't get that much of attention even though it took me a month to prepare deals and a had potential of giving thousands of dollars of savings.

Main issue? Content discovery. Communities might help with that. We will see.