On the advertising side, i'd make a point to identify that this server has RS3 Content with NO EOC. Emphasize that somehow, i.e: Want to play RS3 Content & the newest bosses without EOC?
Admittedly I skipped over this server many times because this is what I saw on the advertisement page:
8 fully functioning skills (including Divination, Invention & Archaeology), All 3 Elite Dungeons, An authentic server with NO customs. Mining & Smithing rework, Wilderness slayer,
I immediately NOPED, until I realized that there is no EOC system in this game.