Allow me to preface this question by assuring one and all that as a practicing Christian, I am insulted and saddened by the secularization of Christmas. What is suppose to be a celebration of our Saviour's birth has been reduced to a party of materialism and perhaps even paganism.
The practice of 'X'ing out Christ is the ultimate slap in the face to all Christians and doesn't happen in any other situation. You don't wish someone a 'Happy X-Giving, 'X-Day', or 'X of July', all of which have as many letters as 'Christ' so I don't buy the shortform defence.
However, I've noticed lately that when I wish a fellow practicing Christian a 'Merry Christmas' I use much more sincerity and emphasis than with others. In shopping malls, business, or someone on the street, a 'Merry Christmas' may just be a traditional or polite exchange. With a fellow believer there is an underlining understanding of what the greeting actually means.
This revelation has led me to question whether I should be throwing blanket 'Merry Christmas' to anyone I come in contact with or should it be reserved for those who get it, so to speak. Am I over-thinking or do others feel the same way?