> licenses are usually written more strictly for legal purposes Well written legal documents are precise (not strict). The trouble is that you haven't unambigu

> licenses are usually written more strictly for legal purposes Well written legal documents are precise (not strict). The trouble is that you haven't unambiguously defined what qualifies as personal use, and there are a rather large number of obvious edge cases. This is a good example of something that should be drafted by a qualified attorney.