Earlier quoted context omitted.
To me, it's not really proliferation if the license addresses issues no other license addresses. Just because it adds one or more licenses to the number of existing licenses, doesn't mean those licenses should not exist. Also, as a developer I think choice is good. If users have to do a bit more work to figure out whether they can or want to use code because of its license then that is unfortunate, but not too much t…
It might benefit the author, a little, but it imposes new costs on everybody else.
Reading (and respecting) its license is the least one can do when using somebody elses code. If that takes time, then one just has to factor that in when deciding whether to re-use someone elses code or not.