Google. WTF?

More or less, new blog, not indexed.
Day 1: Nothing
Day 2: 2 Pages indexed
Day 3: 3 Pages indexed
Day 4: 0 Pages indexed (All removed)
Day 5: 1 Page indexed

Although from 0->1 a totally new page which wasn't indexed before is indexed. I don't get it? :S

The blog I showed you earlier had 1 of the random posts indexed quickly. My linkbuilding links on other pages were above it for my blogs name. Now my linkbuilding links aren't indexed but my blog and that post are #1 for my blog name (though there are other posts on the blog)

Yeah G is weird sometimes...for instance, I had a domain on which a had a website with fairly unique content, it got indexed, everything was fine, but then I decided to move it to another domain (subdomain) and I did a 301 redirection from old domain to the new one.

Well, it seemed everything was fine, G was slowly deindexing the old site and indexing the new one. Then suddenly, today I check "site:" for that website - and BUM - suddenly nothing, just completely disappeared from index. Even if I type new domain name it shows nothing. Creepy if you ask me, I mean the site was rather WhiteHat, old domain got PR2, had a couple of links...