I've been going back and forth on this. My current username (MrPunkRocker) was set up when I was 22, and it clearly shows that. Does switching to an alias (and using it every time going forward) make a difference? Also, how will that affect providers seeing my reviews?

....is what MrPunkRocker sounds like. If that's still the case, stay with it.

If you're currently into something a little less intense, you can use "Luke Warmwater".

...Iggy was the singer.

Oh yeah, don't get me wrong. I still enjoy the music (although my tastes have broadened over time). Just seemed a bit juvenile to me.