Thanks for this, have always tended to stay away from public areas as they tend to be too ... public, one exception was around the edge of the town football ground in Kinlochleven during the Glasgow Fair many years back when there was a small village of tents, the owners all walking the West Highland Way
Good manners and common sense seem to be the key to wild camping, stick to the edges of any field and keep a tidy camp. Being solo with a small tent tends to mean things are quiet anyway, the amount of noise is proportional to the square of the number of people or so I was once told!