All forums are cluttered with vehicle problems as that is their main purpose (troubleshooting and performance). It would be boring to post, "hey my car is running good, today".
To be honest the 07/08 and 09/10 have very similar problems in regards to wastegate noise.
The HPFP problems appear to be a thing of the past. Sure they still fail but from 07-09 years there were the most recalls. Since 2010 they have died down drastically.