EUFrag was a community that allowed non-steam players since the beginning. I too, as well as others, have first joined and started playing here while non-steam. As such, I'd like to point out that preserving the legacy of EUFrag would mean preserving this ability of non-steamers to play on the servers. About promotion though, if the staff team thinks it's too big of an expense to handle, then you should end it. After all, being in a community does not only include caring for the good of a portion of the CS-Frag playerbase, rather for the community as a whole.
Long live CS-Frag!