If the 'stories on the net' are true, i'm sure OcUK know about the issues, I don't think Spie or any other the other guys are stupid. It goes without saying, if you have a lot of dissatisfied customers, you will need to improve service. I think the situation is more like a few people who've had bad experiences for whatever reason and have decided to broadcast their opinion across the web. I can't verify the stories, neither can you, but I can comment based on my experiences with the company.
No.
Many years of trading will always lead to a few disgruntled customers, On top of that Mark has been Open about his personal views in the past which has upset a few folk, This does not add up to a Dodgey business or poor trading standards.
On top of that the majority of RMA's are handled via manufacturers & Oc has No control over the time they take to sort things.
Then of course you have the Community side of OcUK which when briefly looked at can be taken the wrong way & seem a Tad harsh & opinionated (much like myself )
After this you have the Power that the Internet can give little men hiding in there bedrooms. I have seen people spend weeks & weeks creating fakes sites, fake Forum members & hundreds of fake posts just to slate OcUK. All that came from maybe 5 bedroom dwellers with nowt better to do in there lifes.
Unfortunetly the Interweb has empowered some very Small minded individuals.