Too often lately our creative work is pirated and there is no equal benefit.Agents ask for a travel quote to Italy, only to then take parts of it and “magically” piece together bit by bit an itinerary while saying…I just LOVE your itineraries but oh, by the way look what I just “created” by myself.
There is nothing wrong when you do everything yourself from beginning to booking.
But if your plan is to have us take the time and go to the expense of crafting a custom itinerary for you when your intent is to dissect it, use some items to create your own itinerary while booking it elsewhere, then that IS a problem.
If you can to do it all yourself, then by all means do it. Otherwise it is akin to requesting a custom dinner party at a 5 star restaurant and then cancelling all but the salad course, cooking your own food and then pretending you had the same experience as those who ate the 5 course meal prepared by a master chef.