All the more reason not to use them so widely. They sometimes are invasive and behave like a virus (GPLv3).

PyQt4 vs pyside is a good example of licensing done wrong, I am not sure licensing a library under GPL would help others as it restricts the projects using them to use only GPL. It means that if you just link to it (just use the names in your program and rely on the client to have installed the right library) then your project needs to be at least the same version of GPL.

Then we have pyside who reinvents the wheel for people who cannot afford to pay for a simple layer between python and qt4.

LGPL is fine though for such uses.

But the main point I want to make is that people using those license seldom read them entirely, which makes it actually a big show stopper and ruin their effort to help the community.

There is this loud minority that only find value in software if they can slap some restrictions on it, and then get upset that GPL won't allow it.

That people can be so self-absorbed that they can't enjoy being given software for free is sad. It is also harming the community, and ruining the work of so many people.