There is a list of top paying keywords... and if someone wanted to target those keywords... would you risk getting banned, even if you make quality sites? Say you have 10 different domains, each one about focussing on one of the highest paying keywords.... even if you had good content, and a good deal of information regarding that topic... would google close your account? is that considered a MFA site? or do they only care if your site is completely garbage with googleads everywhere? would there be a problem with making 10 sites about the 10 highest paying google keywords, if you had good quality original artices on each site?
I dont think so it would be problem making a site with High Paying Keywords. Only problem starts when you try to get invalid clicks and do spamming or do things which are not allowed in Terms of Servcie of Adsense.
You hit the nail on the head when you said 'quality site'. As long as it's a site that has some genuine information with some real value content then you shouldn't have too much of a problem. It's amazing how many AdSense publishers are becoming expert in fields like aviation law, mesothelioma and loan consolidation
Yes, as long as it's quality, it isn't considered pure MFA. Google will only take action on sites that are blatantly trying to get people to pay more attention to the ads than the content.