Spanner - don't forget Southport Beach, Anglezarke Moor, and numerous impromptu beat ups and 'displays' at strips, airfields, and other locations. Few would do that now.
They were great days!
I think the Titch tragedy (Rooftop?) was CG related, and actually I don't think the accident rate was worsened by all that 'interesting' flying. I don't remember any crashes caused by it*. In fact the ultra low flying experience probably made for better pilots with a more awareness of wind effect, apparent speed variations, and lack of horizon at very low levels.
* I don't count the Luton Major tragedy, as that was daft flying, not interesting flying; aerobatting a non-aerobatic aeroplane.