alt Hacker NewsYour project is vastly more specified than a toy project, because it has a real customer (you) who will expect it to work after it ships. That expectation is what separates toys from real tools.
I bet you could write a word processor in an hour. It might only add or delete one character at a time (no selections). It might persist only to a hard-coded "output.txt" filename. You might have to kill the process because there's no quit operation. But that would suffice for a toy word processor.
Fair point, my example was indeed "shipped to production" and may not compare a throwaway static generator toy project.
I still think those estimates are off, because I think many of those projects would need significant research and learning time, possibly more than actually coding -- not to mention time spent troubleshooting when something goes wrong.