Obviously in order to not destroy the economy completely it wouldn't be super amazing. Like- the normal ratio right now is 100pb:1ms, right? So if there was a way to give the site itself your pebbles so they just blip out of existence in exchange for one moonstone, it's have to be pretty high in relation to that- like 250k or something. And if you wanted to buy pebbles with ms, you'd only be able to buy like 50k or 25k per moonstone.
This idea exists to help get rid of pebbles quickly for people who have far too many and nothing to use them on, as well as making it easier to get moonstones, without putting everyone who sells pebbles on the FM outta business.
It would not be an ideal option, but that's not the point. It would just be a pebble sink that could get one something that arguably has nearly infinitely more worth in exchange.
This could be slightly unfair, I know, I realized that- older players with more moolah would have an easier time getting tooonnsss of moonstones than newer players and I'm not sure how to fix that

This is not the best idea that's ever existed, but today I got a taste of the problem of having too many pebbles and not enough things to spend them on, whereas there are soooo many things to spend ms on. Companions, CA- both making and buying it- as well as besprinkling for wolf projects, which can get very expensive very quickly, not to mention the pack eyes apparel which look soooo cool but are expensive as heck, and buying new dens/apparel slots, among many, many other things. There's just nothing (besides the totems, which i bought two of today because the pebbles i had were actually making me legitimately nervous) you can buy with pebbles that appropriately matches the magnitude of how much some people have, and then they get stuck with too much and can't get rid of it as quickly as they make more.

Just an idea to fix a problem I barely understand, but I can see how it's getting hard for a lot of people.
Thank you. Apologies for the enormous scary paragraphs