You do realize that daneos has taken the needed precautions to set this game apart from its original predecessor right? Also you have to remember if the original creators wanted to take legal action against this game why would they advertise the server revival on the old dbocom page?
You do know that dbocom is and was not ever affiliated with the actual developers, right? It is a community fan site. Also, because it is still using resources from the original game, if any money were made off of it then it would be illegal and could still be shut down.
To the OP: steam doesn't host the servers outside of the games developed by steam/valve. Each game still has its own servers and the ping won't be any better. Most of the games you play through steam "seem to have better ping" because they have servers that are more local.