I find websites which change the address bar's website link when It auto-load new content after I scroll down the page very annoying. Sometimes, I just want to go back to the original page like Google Search results instead of clicking the back button many times, and have the website scroll up to previous articles until I am finally back at the top where I can go back to Google Search Result or the website's homepage.
I agree. They can be pretty annoying. Some of them even add a pop-up tab or two, and if those open, it's incredibly difficult to go back to where you started from.