yes, like i said a few days ago, remember that excellent site you linked to about why macs are the best computers for schools? they had a really good two sentence disclaimer explaining that when they said 'PC' they meant an IBM compatible desktop computer running microsoft windows. So long as that is made clear then it's all hunky dory. it's not good saying 'YOU KNOW WHAT I MEAN YOU RETARD' if some people clearly do not know what you mean. if everybody knew what you meant then you would not get any people telling you your terminology was wrong (or confusing, whatever).
So just include a disclaimer on the top or bottom of articles that use the term 'PC' in a stupid way. that's my vote anyway, i mean it's your site, i'm just trying to point out how its meaning could be a little clearer.