I'm new here, and this letter was received for the first time, but I think that there can be no question of any motivation in this form. After all, the author can think that really someone interested in the work and if they are on other sites, then begin the procedure of removing therefrom, which as everyone understands, takes a lot of time and if the result is negative, you will probably lose profits.
All this is not quite right in my opinion. I would like to hear the opinion of Alami about this.