Topic: How does Google treat hidden content which becomes visible when clicking a button? – Quick Answer: If you’re not trying to stuff hidden text in there then don’t worry about it, it’s a normal thing on today’s web
Topic: Why aren’t penalized sites notified in Webmaster Tools? – Quick Answer: They do for most penalties
Topic: Why aren’t geographic target and query parameters specified in robots.txt? – Quick Answer: Google don’t want to play with the robots.txt spec, they want it in Webmaster Tools
Topic: Why would an FAQ page rank above a site’s homepage? – Quick Answer: Because they are getting more links
Topic: Why does a new page’s ranking change over time? – Quick Answer: More info becomes available to determine rank