The users of these libraries benefit from this herculean effort of very real programming, but are mostly not the herculean programmers. The users are the commu

The users of these libraries benefit from this herculean effort of very real programming, but are mostly not the herculean programmers. The users are the community, not the library creators. And the users are mostly, from what I see, the arty designy web dev types. That doesn't take away from the real problems, or the tricky design or difficulty in building a compiler for the community.