
Sun Local is like a search engine for adverts and pulls in ads from a lot of different places such as Oodle, Gumtree as well as Trade-It and Champdogs too. Most of the scams I have seen (and reported) originate on little-known ad sites like Mobiya and Inetgiant. Like the above poster, they are almost never withdrawn and I have never had any kind of feedback from them after reporting them to the ad site for spam/fraud.
If you (or anyone else reading this) hasn't ever looked at Sun Local - here's a random search I've just done (hope it works):
http://pets.local.thesun.co.uk/all/for-sale/pet_breed_pug/?oldq=pug&inbs=1I typed in "Pug" and was not surprised to see quite a few advertised as Free or well under £200. I think most people here know how much they usually go for, even pet/BYB. You can bet the cheap ones are a scam. If you follow up the ads and sound genuine, after about 2 emails you'll find they have suddenly moved to the Outer Hebrides, the Isle of Man, or Northern Ireland and want to send you the puppy by courier.
PS: the ads and replies are usually oddly-worded - speaking about 'potty trained', having all 'shots', 'health guaranteed' and in some cases AKC or UKC reg! If you trawl through the cat ads (try Bengal) you will often see photos and/or wording - plus sometimes cattery names lifted from genuine American catteries - and often kittens advertised as being "KC reg"!! I once followed up a suspected scam kitten ad, and recieved an email back asking me when I would like the
puppy delivered!