X is broken in 4.2bsd

[Karlos Mauvtaque]

There seems to be a lot of news of late based on the following templates:

"I tried using X in 4.2bsd and it is broken, but I've fixed it.
The diffs follow."

"Why did they change X in 4.2bsd?  It breaks everything in sight."

"I have something for 4.2bsd which simulates what everyone elses UNIX does."

"Try X on your 4.2bsd system and watch it trash Y."

"You need spaces after an X to make Y work in 4.2bsd."

Is 4.2 really this disastorous or is it AT&T propoganda generated by a
shell script on research?  How about Dennis?