Super usefull 1.10 patch Info!!!!!!!

Omfg if you cannot find something like this you are a *drumroll* fucking idiot.

Bill: Both of those. We changed a lot of the proximity rules; there's actually a little bug in there now being worked on. Also we evened out the experience between high and low level chars. The biggest one is we've really gotten fairly restrictive with range. It used to be you could be nowhere near the guy, but now you really have to be in *the party* for it to be happening. That's probably the single biggest one, since [previously] people could almost be sitting in town or someplace else and getting experience. But it's worked out pretty well, we've done a lot of tests with it, and I think it will really help; I think you'll see that a lot in the ladders, the new ladder where people will really have to be out there fighting with each other, contributing to gain experience it's not just kind of hanging out riding the coattails of the higher level guys.

Taken directly from the diabloii 1.10 info page.