True but most of the sites are exactly the same. I think if you focus on a specific niche of servers (bedrock maybe ) or invent some useful features you might be able to rank pretty well
Modding will be very unlikely yes but where there is multiplayer there is usually a demand for hacked clients and since I think most people who are gonna play hytale come from minecraft I think its very likely that there is gonna be a hacking community
Deobfuscation cannot be patched since it essentially reverse engineering the client back to the unobfuscated source code and if studios like treyarch cant manage to fight it i doubt hypixel will be able to