[quotemsg=18287497,0,1767032]First of all here's source who's more knowledgeable on details about Windows.
http://www.windowscentral.com/windows-10-build-14390-rolling-out-fast-ring-insiders-pc-and-phone
Notice where they say that the build might be RTM already.
Here's another one.
http://www.winbeta.org/news/windows-10-insider-build-14390-available-download-get-now
Do you even know how long it takes to beta test a build and to fix bugs? Do you think that they'll be able to release a new feature and have it really polished by August 2? Goes to show how much you know about being an insider or software development.[/quotemsg]
Windows Central is not a credible source. They are a competing publication. The bulk of that article was direct quotes from the exact same source we used, as linked above. His "sources" that say this may be the August 2 update was not backed up by anything. At this point, without any sort of statement from Microsoft to support it, it might just be his assumption.
Your second "source" said that RUMORS say this maybe the August 2 anniversary update. Again, there isn't a valid statement or press release from Microsoft or any of its representatives to support that build 14390 will be the August 2 update.
I am actually enrolled in the Windows Insider program. I tested several builds prior to the release of Windows 10. The last few Insider's builds that were made available for download prior to the official release of Windows 10 were up for just two weeks before Microsoft felt Windows 10 was ready to ship.
http://www.tomshardware.com/news/windows-10-build-10240,29600.html
If Microsoft needed less than 2 weeks to collect feedback from Insiders, finish Windows 10 and ship it to retailers around the world, why do you think it is going to take them an entire month to finish checking updates?