The fact is, a person who is lagging badly, even over 400 ping or something, mostly will not affect how the server runs. The one who will have a very bad time however, will be that person who is lagging like that. The main problem is when you have a good portion of the server with very high pings, but I've never seen that to be the case at any point on any eGO server. So I wouldn't worry about it too much personally.