Racetraitor got added when their new album got nominated in grindcore (blame me, I liked it and grindcore's often hard to find good nominees for) - haven't heard their earlier stuff to have an opinion on it
Top 200 albums requires at least 200 votes, with only studio albums featured. Top 20 albums of the year, Top albums by styles, Bottom albums, Live albums and DVDs require 20 votes.
You can create advanced top-lists in the Album index, customizing genres, media types, minimum number of votes, years range and so on.