Its been tried/done but attracted the same audience of investors looking to make a quick buck as opposed to looking to actually make it work.

From what i've seen you need some minimum percentage of makeithappen-ers amoung those interested in a project.

It seems the guy running the extension just left. With minimum influence on the value.

https://addons.mozilla.org/en-US/firefox/addon/b-dns/

https://www.coinbase.com/en-nl/price/namecoin