BBC News - England riots: What are the Post-it note 'love walls' all about?
Rowenna Davis, a councillor in the London borough of Southwark, which includes Peckham, says the spontaneous "wall of love" was "about the silent majority expressing themselves in colour, words and community - rather than violence and destruction".
"It was quite cathartic for people to know that other people felt the same, that they were not alone, that people loved their community, and there was pride in the area."
Davis's messages included "Peace in Peckham", "I'm so proud", and "Let's keep joining hands".
Another sticky note advocate is 35-year-old advertising manager Lynsey Saker, who has lived in south-east London for four years.
She says her friends went out in Crystal Palace armed with them "in order to show the community that we will repair it, we will rebuild it, but most importantly that we care about it".
"It upset me to see shops vandalised, I know how much passion people put into their businesses, this is a lovely community, it was a way of expressing how we felt, of showing we appreciated them," she says.