We take the free word pretty seriously on this website. If the user has to pay something else than $0 for the template, then it won't appear on the website.
The design and quality of the website has to be very acceptable. Old, undocumented and disorganized code may be a reason of rejection as well.
Best Free HTML/CSS doesn't own any of the templates listed on the website. We are just a directory/listing website, we collect only the best and free templates that web developers/designers offer for free.
It usually takes within 1-3 working days.
In order to become an author on Best Free HTML/CSS Templates you will need to have your own website and have at least 2 freebies available for the community. Until then, if you decide to publish a freebie anyway, it will be associated to the "Various" author.