Because the top 100 LTC addresses possess over 50% of all available coins in circulation.
Maybe because alot of them address are exchanges and similar holding many peoples coins.
Which is a problem don't you think?
Sorry lost, why would it be?
Also its impossible to map the distribution based on address' a) for the reason I mentioned early b) also for almost the opposite reason; large holders also spread the coins across address' for security (or they are idiots)........so either way any examination of the address' is no more accurate then a random guess.