Ha ha ha
My user name comes from a time when a poster asked if she should get her DC to do voluntary maths papers over the summer holiday & I said if I asked my son to do that he would fix me with a Basilisk Stare. He's managed to get through A levels , university entrance and indeed now graduated with pretty much no help from me ( the exception being as I mentioned above someone telling me on here he could get his HAT score, which he did not know )
I think the Oxbridge entrance process has a fair few differences from other universities and apart from anything else I don't want to bore my friends to death, whose DCs are doing other things, with my son's particular stuff - so yes nice to be able to stick on a post to a self selecting and interested group & people can post if can post on if they want to.
In the same way that if a DC wants to do Engineering and not sure which course , or wants to apply to a US university , or pros and cons of a gap year etc. It's a way of talking about things which mean you don't have to annoy your own DC with well meant but probably at least at times , questions they do not need or welcome. They have enough to do.
I agree with goodbye and Errol . Indeed , to be lighthearted if I may - I do not think I will ever not think about how DS gets on and whether he is doing well & happy - but with no other place to discuss , I may end up like that sketch - is it Monty Python - where Mum is fussing and John Cleese says wearily , Mother I am 55 and I am a High court judge 
Ds is doing things I have no experience of. No chance of me swooping in and doing anything for him , and for that I should imagine he is heartily grateful 