For a really stupid example, part of my job involves originating truck shipments. One carrier we use has a website that prevents pasting on their web form to ge

For a really stupid example, part of my job involves originating truck shipments. One carrier we use has a website that prevents pasting on their web form to generate a bill of lading. Because forcing me to type in an address is much less likely to cause errors than pasting in whatever address I had copied. Funnily enough (in a sad way), 40% of the JS load on that page appears to be anti-pasting logic & supporting libraries. It appears to be developed in-house, since the scripts aren't obfuscated and a quick search of duckduckgo didn't match any open-source libraries that I could find. If they weren't reliably the cheapest carrier with the fewest issues I would raise a stink, but it's not worth it. That, and I just bypassed this 'feature' with a very similar AHK script, and their website has a very nice UI besides that issue.