It would be a really nice touch if one could see his own name in gold too if you are official supporter and gold option is not disabled.
I see my own name in gold.
I think that if you aren’t seeing it, it hasn’t been enabled properly, and you need to raise it with someone to get fixed.
@anoek it looks like we have another supporter who didn’t get his account fully upgraded properly. Going to his profile page it says Site Supporter but his name is not yellow though he claims he has not disabled this feature.