This might come off kinda condescending, but it sounds like you're more concerned with the social image surrounding parsers than with parsers themselves. All you want is to see how much dps people are doing. That's all that parsers really do. How you choose to apply that information is up to you.
You can use a parser to just see total encounter damage rather than dps. It can actually work pretty much exactly the way the pvp scoreboards work if that's what you're looking for.
Wanting to see someone's dps without a parser is like wanting to have a convenient place to keep your money without using a wallet. You can find some work-arounds, but you're gonna make things needlessly inconvenient for yourself.