Earlier quoted context omitted.
Haha I love that people forget how google/bing are out there scraping everything and anyone who scrapes anything for any other reason is a "bad guy". You can get around some web scraping blockers by just setting your user agent as Googlebot too which I find funny...
No they don't, Google and Bing respect robots.txt. Most websites would open it up to them because they need the traffic, so it's a type of scraping that is beneficial. Any other scraping, especially when ignoring robots.txt, is unsolicited. And if said website takes additional advanced anti-scraping measures, and you persist in bypassing that too, then to me you're clearly unethical, even if it's technically legal. "…
The first mover advantage is so huge in this case that without allowing scraping, it's hard to understand how anyone could ever compete with these monoliths.