As the person who started this project, my personal intention was never to start a fight with TF2C. Heck I used to be an admin on their site and put probably 100s of hours of my own time into that site so doing anything to harm them would've been counter productive.
The way I see it, TF2Stadium's massive selling point is the open source nature since if anyone who has experience in the languages we wrote the site in (mostly GO and CSS but check our github) want to contribute to the site in any way then they can do so at their leisure and I believe the fact that it's not just our developers making the site allows our project to improve from a whole communities worth of experience.
In addition the GPL license we've put on 90% of the site code means if anyone wants to use any part of it to make another website then all we ask is you credit us somewhere on your site. No costs, no strings attached. Our code is there to help the community and it will continue to exist even if our site goes under and for me that is something that is more important than beating the competition.