Well, I don't take a lot of solid black shots so it wouldn't be very disturbing to me.
My Oly C2100z has one or two that show up in the darkest of shots that I take. (Wide open, 1/2 second exposure.) They don't bother me enough to bother sending the camera in to have them mapped out. *
When I'm editing the shot I just use the Clone Tool (I use Photoshop Elements), set the 'brush' to just a few pixels and 'clone' or copy a few pixels from a surrounding similar area and paste them over the bright green spot.
* Mapping is something that I'm sure happens with every digital before it gets shipped. There is an acceptable level of bad pixels/photo sites on a sensor and I'm sure that most of us wouldn't be willing to pay for a perfect sensor . The software is adjusted to ignore the reading from that photo site and use one next to it or an average of some around it. I don't know the particular algorithm used. Remember that it's one of two millions, four million, some millions of bits of information available.