Some places deserve a second visit or a visit to more than one city.
I think a lot of the Turkey hate is from the coastal resorts, which I haven't been to and wouldn't go to. Istanbul was great.
Cairo is hard work if you arent used to the region and the Pyramids are not marketed accurately so if people don't research they're surprised that they're basically next to KFC. I went 20 years ago as an unseasoned 18 year old and it wasn't what I was expecting. I need to return though and desperately want to go to Luxor. Sharm was blah.
I've been to the US enough times and to enough places to know that it doesn't scratch my itch. Hawaii Big Island is stunning though.
I didn't enjoy India at all - did the golden triangle. I expected to love it. It was at the end of a longer trip elsewhere though and I would consider giving it a second look, but not as a priority.
Pisa does what it says on the tin. I stayed for one night as I knew that already. It's a tower. Venice didn't smell when I was there and I enjoyed it. Loved Rome but round the train station is rough as. Didn't find Lake Garda interesting or beautiful.
People want different things from places they visit so I largely ignore recommendations.