I would certainly agree with the previous posters that the "too large of an enclosure" subject ordinarily comes up when somebody just bought a baby ball python and asks why it won't eat. When told that the 55gallon tank that it is in is too large for the snake to feel secure in, the person that is asking for advice usually doesn't want to hear the answer especially if they just bought their big tank and other equipment brand new from the store that sold them the snake. The people on this site usually answer husbandry questions in a direct manner and some of them could probably do it in a kinder and gentler fashion. If your big snake is happy in a big tank I can't imagine that anyone would care one way or the other.