I use my real name and encourage any potential employer to check my SCN profile (they'd be fools not to do that anyway). It is not to showcase my "medals" or points, but so that they could see my communication style and understand that SCN is an important part of what I do. If an employer would be uncomfortable with me spending some time online (without a negative effect on the workload, of course) to learn more about SAP and to contribute (which is the best way to learn), then we're just not meant for each other.
But to bring up only the SCN point level as some kind of a major career achievement is just silly IMHO.
P.S. This question has been asked before, look it up.