I've been using HUKD for a while now, not as long as some people here who mentioned 10 years, but I've definitely seen the deal quality go down.
Stuff I've noticed:
- Deals where people post a site wide discount code against each individual item. i.e. £5 discount code and people start posting how it can apply to every item in the store one by one.
- Exclusives/sponsored deals that are pretty much always junk and get pinned to the homepage because they are monetised rather than being good.
- Deal editors being given preference for posting deals over random people.
There are still some good deals posted but it's fewer and further between than it was in the past. To be honest I've probably spent way too much on deals from there anyway so that might just be a good thing. I haven't followed many in the last few months that actually lead to me buying anything.