There are many travel sites on the Internet and I read a good many of them. A couple of writers of late have encouraged people to stay away from Venice, Lake Como, and Pisa. They say that they are now overrun by tourists. When I was staying for a few days in Dingle, Ireland I heard locals complain that Rick Steves had raved so much about their place that there were foreigners with cameras everywhere.
My photo above is of Lake Como at Bellagio, Italy. It doesn't look that busy to me, but then I was a tourist. I do know that it is a relief in Venice when everyone goes back to their cruise ship. When that happens (about dinner time) the city is a great deal less crowded.
Many cities in the world would love to be overrun by tourists. What a boon to their economies that would be. Sure, on the downside, the locals would have to deal with the yokels. Tourists are a mixed blessing.
But, don't blame the messenger. When a travel writer likes a place and people read about it and show up, that is not the writer's fault. It is their job. If a place is wonderful, it is attractive. That is just the way it is.