Stig, it's the new Craigslist...ever since Craigslist started charging $5 to place a vehicle for sale ad all the vehicle ads (well, not all, but a large percentage) have moved to Facebook Marketplace (it's free). it's like the classified ads of facebook. Very few posts are cross posted on both craigslist and FM...our local criagslist for motorcycles (and scooters) is almost completely dead.
I just found it odd that so many scooters are for sale..used to be there was the usual random assortment of Chinese no name scoots for sale and little else other than Harleys. Now there are Vespas, Hondas, Burgmans, all kinds of scoots.
Prices are high, too. Sellers market.