There used to be some posters here who did this, I can't remember who. They were following a book called Calorie Queens: Living Thin In A Fat World, written by Jackie Scott and Diane Scott Kellum. I don't see anything wrong with doing that. At you current weight, you will automatically be creating a deficit if you eat at the calorie level you would need to maintain at your goal weight. When you get closer to your goal, you won't be creating a very big deficit, so you should expect weight loss to slow to a crawl at that point, but you can worry about that and tweak then if you need to.
All in all, it's just plain old calorie counting, which we all know works. You may be eating at a higher calorie level than many of us, which would mean a slower weight loss, but most of us have to do some trial and error to find the right calorie level to lose at anyway.