I live on a new build estate and a group of neighbours have for,ed a nice friendship group. On Saturday afternoon one of the group hosted a small bbq , planned from 3-9. There were 10 of us to begin with but people drifted off . We were sat around a table in the garden, the Alexa speaker on the doorstep playing the radio but not loudly as we were all chatting.
At 7pm a bloke appeared at the back gate to say he was trying to get his 1 year old to bed and would we turn the music off. We did but continued to sit in the garden .
At 8 pm a post appeared on the community Facebook page saying that people having bbqs were selfish and had no regard for parents trying to put their little,ones to bed in weather we were not equipped for and with no option to close their windows .
I responded simply saying peaceful enjoyment of your own garden is not prohibited, that yes they did have an option to close the windows and this was the first bbq my friends have had in the 2 years they've lived there , that we weren't exactly having a rave , that we all have or had children, that having kids doesnt give you autonomy to tell others what to do and that if they didn't want to hear other people living on an estate wasnt a good idea.
I also said we were planning on moving inside the house at 9pm
Then the insult's started. I did respond (I know I shouldn't have) saying perhaps if anyone had an issue they could come and knock on the door and discuss it like adults instead of being keyboard warriors.someone
Posted a copy of the councils nuisance noise policy ( which ironically showed night hours to be between 11pm and 7am ! ) this was 8 pm
More insults . Gifs with popcorn . Someone said " i suggest you blah blah blah blah blah .
I lost it . I said I suggest you fuck off before I turn the music back on
Today the whinging post had been removed 

What the fuck is wrong with people ? It was a sedate afternoon bbq consisting of 10 people aged 35 ~ 50, not an all night rave !
Aibu ?