So, to download the few of these that I like, I either have to login with FB and allow access to all my friends, or use Twitter and allow the font owner to post tweets to my account. Sorry, but that's not exactly what most people expect when they read "free fonts."
There is so much crap like this on the internet that I use Multifox to simultaneously stay logged in to my personal fb/twitter and my fake fb/twitter for crap like this.
Why is it so hard to provide a nice sample sheet for fonts? Just a paragraph (or just a sentence for display fonts) in the various weights would be a huge step forward in most cases.
SIL is just one of many open source licenses, and they said 'free', not 'open-source'.
I think it's on the front page because many people may be interested in modern type trends and at the very least this is an excellent collection of ideas to look at. If you want to download one for free you can too!
* Non-commercial use only
* Not able to be shared
* Actually costs money
* No-derivatives, which would seem to prevent actually using the font at all.