That's pretty much the bread and butter of reddit comments. It might be an interesting post and there is definitely interesting conversation somewhere in there...but you've got to wade through a large amount of puns and people thinking they are funny. Those things usually lead to highly upvoted large comment threads that have no relation to the original submission.

If there's a system in place to gain points then people are going to take the easy road with silly jokes and odd comments in an attempt to get points rather than contribute to the discussion.

I totally understand their reasoning for staggering the roll-out. Think of the disaster that strikes if all users get Windows 10 and there's an issue. Of course, that's only an ok course of action if you're communicating well about expectations to your customers and users.

Microsoft as a company seems torn between wanting to spread hype for their products and communicating realistic expectations. Looking around on news sites we see lots of loud headlines with "WINDOWS 10 ROLLING OUT JULY 29TH FREE!" followed up with several quiet, "Microsoft clarifies this is only for a time subset of users that have signed up for a thing you've never heard of". Sure it creates hype but probably also a lot of disappointment as people feel deceived by the information.