They have always been open and clear about letting you build it and use it however you like.

I don’t disagree with the want to license software like this. The downside then is a subset of “letting you build and use it any way you like” includes registering N trial accounts every 30 days. If this isn’t actually spelled out as illegal under the license, some jerkbag will do it. I wish we didn’t live in this world, but we do.