Seriously - I remember at one client there was a specific machine set up to edit the build on because it was the only one that could open the workflow editor without crashing. Why there was a workflow editor to edit MSBuild stuff I don't know but that's that world in a nutshell.
If Make was that awesome of a project, it would have evolved to cover the needs of most developers, however, some tools grew around it to "workaround" its limitations, and then the monster called autotools was born.
I consider MSBuild much less worse than autotools. I'm not yet a fan of any build tool to recognise that it's good, but at least I can tell that MSBuild is one that sucks the least.
You might say, "it's just one joke, what's the big deal?" One joke, attracts others. Everyone thinks they're funny and their joke with worth everyone else's time to read it. If PR become a place that's acceptable to make jokes, it'll be flooded with noise.
There's a well-established tradition of pull requests and issues being used for commentary and humor.
Here's a selection. The first one is by the founder CEO of a company with a ~$1B valuation that's prepping for an IPO and is very similar to the one everyone here is complaining about. The second one has comments from a couple well-known tech folks. And so on...
https://github.com/saberma/shopqi/pull/409
https://github.com/h5bp/html5-boilerplate/pull/1074
https://github.com/ericf/yui3-gallery/pull/21
https://github.com/WhiteHouse/fortyfour/issues
https://github.com/joyent/node/pull/2472
But apparently now that Microsoft is using GitHub, everything is Serious Business™? Is there a dress code now, too?
That's my interpretation (and not my sentiment - I'd rather MS open-source tools like this than not).
The fact that your nasty comment here got upvoted rather than flagged to death is really sad.
It's all just a bit of fun; there is no need to get directly insulting over it.