I think there's a bit of scaremongering, but I also feel that Chinese fluid vendors are less concerned with stating ingredients, nic strength, PG/VG ratio. UK vendors are largely doing a good job of developing and adhering to their own code of practice that ensures the customer gets what they're paying for, it's not sold to under 18s, the necessary warnings on safety are present and all ingredients are fully listed.
I did buy what was supposed to be Dekang juices from FT, but Dekang isn't stated anywhere on the bottles, they don't look like Dekang bottles and the flavour/any other information is on a sticker where the printing has worn off, so they all look the same and I don't know what I'm vaping. They do include batch dates and warnings about nic, though.
I'd stick to UK - they're self-policing very well