Oh Dear CVW,
I assume from your posts you have had a hard time at some point.
All ATCOs will tell you that variety is the spice of life, How did our Jet pilots get to be Jet pilots without starting off life as student PPLs.
I am quite sure if the Biggin controllers are having difficulties with GA they are more than able to deal with them , they are after all professionals at the job.
I work at an airfield which is the fastest growing regional airport and we welcome the mix of GA and commercial.
From my limited experience of flying in and out of Biggin they all seemed extremely friendly and ATC seemed more than up for the job, and those i know who keep their Aircraft there seem very happy with it.
Every airfield has its problems and Im sure those who work or operate out of Biggin can tell you a bad story , but then everyday stuff that works well with no hastle never gets reported does it
BTW im not having a go at anybody OK