Parsers are great IF you're in a serious static that wants to output the most DPS in a raid, or if you just like to see how much you can pump out.

People who use it to judge and berate others hurt my young soul and honestly you should just ignore them. If you know you're DPS is good enough for a raid and know the mechanics, then don't let it get to you.

Once in my Turn 8 party someone was using a parser on me and my best friend, and yelled at my friend because her DPS compared to mines was a tad bit lower.