Sadly it will only catch stills of actual offenders. However a speed watch would be able to record information such as bullying I am sure.
As for the point about constantly having to look for signs for bus lanes, speed restrictions, parking restrictions, schools, ducks crossing etc… It is a distraction for sure.
I would welcome a logical re-write of the speed limits, but don’t think a blanket 20mph on all residential roads is an answer.
The mystery of Droitwich Close lives on. Can’t see any logical explanation for that, and would love Lewisham to answer my emails about it one day.