Man, no need to jump all over the OP for his opinion. It's a pretty valid one, honestly.
More releases = more publicity, more talk, more excitement, more anticipation, more money for them, more name recognition for the brand. There aren't much of anything being put out for 5.0 (TRPG), books or otherwise, and that does seem a little weird. It also means there is less to look forward to and less to think about.
I agree that tons and tons of add-ons can ruin the game - certainly it ruined 4.0 and after a long while 3.5. But going from that to the current release schedule would rightfully raise an eyebrow. And no need to jump on anyone who does.
There are definitely some books that they really should put out - and the OP's 2nd post covered a few good examples. Honestly it feels more like they are a group of only 3 or 4 people now, and they are taking a long time to do anything. Personally I'd like a lot more class options for the poor classes who got the short end of the stick - this newest Sorc option is nice but there are others that are lacking. And a FEW more feats - not a lot - would be nice. (But no +1 to X, please!)
Also, "go see what's on the website" is a terrible excuse - but only because D&D has a TERRIBLE website. I'm hoping they eventually catalog and release the extra bits in some sort of more useable form, and with all the surveys it really seems like they will. But their website is awful and if it wasn't for THIS website I'd never see anything they release.