You started a bun fight that then got ugly:
Him: asking if she's had a DBS check?
You should have let it be. This was a question for OP. It’s relevant info and DBS checks are very common. I had to have one just to chaperone on school field trips. But no, you start a bun fight by replying:
You: "so you think people leaving their very young kids alone for hours is less of a risk than leaving them with a neighbour? This site is not Twitter. What's next - needed a food hygiene certificate and chefs qualifications when helping in a soup kitchen? The whole world will be a better place if we got to know our neighbours better and could ask for help when needed!"
Very judgmental. Merely asking if OP has a DBS check doesn’t mean he thinks children home alone is safer than with a neighbour. Then you get very sarcastic and cutting about it by ranting about soup kitchens etc.
Him: "not sure what you think your post is about? Please vent some where else where they can understand you.
Valid response to your aggressive rant imho.
Me: "it's written in British English - apologies for the confusion for those who need to revisit their comprehension skills."
You engage in a personal attack, saying his English must not be very good...which imho is a racist attack because it implies you think he isn’t English and that’s why he’s did not “understand” when really we all know that’s a polite euphemism for “why are you being so mean”?
him: "oh sorry being Welsh I am sorry I’ve offended all you Anglo Saxons as you’ve just offended me" "Racist", "going to apologise for your racism Dora?? Or are you just an Anglo Saxon bigot???"
English is descended from Aenglish, the language of the Anglo Saxons....so he’s got a point about 1) you did a racist attack on his “English” and ooops, he does happen to be ethnic Welsh, not English, so yes you were racist. Whether you intended to or not with your insult about his English, unfortunately for you, the recipient was not ethnic English.
Me: "clearly your geography is as bad as your comprehension. Wales is still part of Great Britain and English is the official language!"
And that’s you digging a hole....
Him: "reported to site as clear racism. No we don’t identify ourselves as Great Britain, we obviously have our own Synedd or do you deny that??"
He got you. I think you owe an apology. You started a bun fight and then proceeded to cover yourself in shit.