I worked at MS twice as a tester
NE1 can be a beta tester
that doesn't mean you are working for them
at best you are working with them
I am a beta tester and right now i am using .NET RC1 all over my network.
When problems are found the newsgroup is consulted and answers are given as it should be. So where is the damn problem.
MS also fixes lots of stuff that is like a potential issue.
I see new security hotfixes all the time that outline some really rediculous scenario that could almost never happen and hasn't yet happened but they have a fix for it. Does MS want to let it slide? NO. Do they want more support calls? NO. I can tell you this they did not get where they are by letting it slide. The best argument that you have against ms is that win 9x sucked and was buggy but that is old news.