People who care more about freedom than comfort?
The sample above is "non-trivial" according to the set of heuristics they are using, so they are just saying "if the program is not trivial, then you need to explicitly state that it is GPL for us to consider it free"
(as a consequence, my entire site won't work for users with this enabled)
I mean -- the websites you are visiting are bound to be using non-free proprietary software. At least a few of them.
Actually -- the routers your packets travel through are using proprietary non-free software!
The BIOS that boots your PC is non-free and proprietary!
Just throw your computer out -- that is the only sure way to stop using non-free software. (actually, don't throw it out -- just mail it to me ;)
Oh yeah, using jquery is "non-trivial".
What a load of crap.
/! jQuery v1.11.1 | (c) 2005, 2014 jQuery Foundation, Inc. | jquery.org/license /
It's not ideal, but I'll take it.
The $.doSomething(); example
Completely tangentially, its quite possible to be a Catholic priest [1], have never violated any Catholic teaching or discipline, and have practical experience with sexual intercourse. Catholic priests can't get married, and men usually can't become priests in the Latin Rite if they are currently married [2], but widowers can be ordained priests in the Latin Rite, and married men can become priests in the Eastern Rites.
And, in any case, even in theory, becoming a priest doesn't require one to never have violated teaching on this (or any other) point before so doing.
[1] in the usual sense of a "priest in a church in union with Rome", not extending that to breakaway or never-in-union churches that might have "Catholic" in their name.
[2] But there are exceptions to this rule.