Op, perhaps you genuinely are the one primary school teacher in the UK who has managed to avoid understanding how SATs work, and avoided having any sense of sress about your own impact on the assessed outcomes of the children in your care at this point or into the next couple of years, or of the impact on your school rating and impact on all the staff.
Perhaps Op you really had no sense that people might consider a primary school teacher asking such a question about high scoring SATs scores as a stealth boast (and not a very stealthy one at that) or that it would be surprising for a professional to come on a public forum for parents who are essentially the 'clients' in their workplace, to admit such ignorance.
Lots of people work full time and have lots of kids. Most parents of Yr6 kids have known through the year that the results will come out this month, so were hardly surprised and have had plenty ime to do a little research...or even ask one's colleagues, when one works in a school!
Anyway, perhaps Op you are that one primary teacher who has somehow avoided any understanding of SATs, but I expect even you can see why lots of people are doubtful about all of this. You repeatedly say you find it amusing that people that people would suggest you are boasting or feigning ignorance......but can't you see that in the circumstances, the incredulity of many posters should be totally understandable.
Your son has done brilliantly. Well done to him and to you too. Enjoy it. And either be honest about your knowledge or develop an appropriate sense of embarrassment about your lack of knowledge given your profession. MN is always happy to give advice, but never likes BS.