[mycroft-holmes]

That's quite the assumption. When I'm around your stereotypical programmer, I feel they assume I'm not as technical.

[robmcm]

That may not bother you, but lets assume it does. You may be willing to change your fashion sense in order to gain their respect (even though you shouldn't!) but you gender/race is something you can't easily change.

The problem is with the people projecting their discrimination on to you and your colleagues. You should fight this not encourage or accept it.