Per Peeve - generic group text

I have a friend who has the habit of sending generic "Merry Christmas" or "Happy Thanksgiving" group text to everybody in his phone directory.  I do not mind the greetings per se despite it being impersonal.  What annoys me is the consequence of a group text.  If one of those person receiving the text replies to my friend, invariably all of the people in that initial group text gets the reply text.  Often than not, it is from people or phone number I do not know.  Then I would be wondering who sent me a vague text that holds no significance to me.

I hope people would take the time to send individualized text to their friends cause it is not that hard.  Some people are just lazy.