Mixture, I think you should consider this is a public Beta version rather than a controlled test phase. Anyone is allowed to try the software out and use it how they want to either get a sneak preview of what Win 10 will be like, or even to post feedback to Microsoft, with the caveat that its pre-release so supplied without support or warranty.
The majority of public beta testers will be the former though, just wanting a look at something new. So its only natural to want to discuss first impressions on an internet forum. Thank you for the warning though that its not production standard yet.