well, a good point cheekily made

When it first started it was only a way for those of us who happen to be in SE23 at lunch times because we are working, looking after the family, work locally, etc. to get together. It has rather expanded from there.

We "namby-pamby work-from-home types" rather miss out on the social side of office life, so it was to give a reason to get out of the house more than anything.

I think we probably all have other things to do on Saturday lunch rather than this, so it was not the main plan, but I did suggest we might try one or two Saturdays if there was some interest (maybe a summer bring-your-own-picnic gathering in the Horniman Gardens for example?)