Yes, I think it has changed quite significantly, and not in a good way.
The new Forum Team answer posts quite differently, encouraging posters to use Live Chat and the dreadful outsourced CS Call Center.
There are a quite a few Staff replies with a standard "Have things improved since your last post" which sounds like a forlorn hope that the fault has been magically fixed. whilst he Swansea Team would have used their diagnostic tools to check the poster's connection to the CMTS and advised accordingly.
There are also replies asking if the poster has called in about their problem, whilst the Swansea Team would have checked the poster's account notes to see if they have called in and what was said.
There is very little technical info given out now and I have yet to see a " I have checked the FECs on your connection and there is a SNR fault ref Fxxxxxx or we are sending a tech out" type post.
It looks like the new team have not got any access to any diagnostic tools or the poster's account and are just winging it.
The new team definitely aren't as good and often seem to answer a question with a lot more questions "How are things now? Have you called in about this? If so what did we advise?" etc. It seems like they don't have access to connection/account info.