I always clean my macbook pro but my ports looks different. My macbook pro is 7 months old. I am trying to sell my macbook pro but I am worried about my ports.
It shouldn't unless it gets real bad. Just do the compressed air and alcohol solution + soft brush. You can find this stuff at most computer stores. A place like Target or Walmart might even have cleaning kits. I don't think you have much to worry about, unless the gunk build up is something much worst than the usual dust and lint.