Host your servers in Russia, or another country that uses DMCA letters as free toilet papers. Worst they can do is "seize" your domain, which you can easily change.
The top WoW servers are not only hosted in some fourth world country, but don't even contain the name of the game on their website, only a registration page, and so on.
Happened many times, just buy a new domain for your website. Your client IP should be a DNS (no-ip.org) or something along those lines.
RSBOT -> PowerBot situation. They got sued over just having RS in their domain. All that happened is the domain name got siezed, they bought powerbot.org. Did not even touch servers, since they were in some fourth world country.
TL;DR: Buy servers in Russia.