Graffiti tells a story

For a couple of years we have witnessed graffiti on a corner near home. As legend has it, the messages are written by one person who has a hatred of his neighbour. Something to do with "poaching" his partner. Messages are usually left on long weekends to have longer coverage. Council graffiti removal "artists" do not work on weekends. Apparantly the Police have a good idea of the culprit, but the offender has to be caught in graffiti action. Another local even posted a typed written message and stuck it to the board, asking that the graffiti should cease, suggesting that the warring factions talk it out. Didn't make any difference. Here are a couple of examples. The question is, does he know how to spell "Phill", as quite often this name is misspelt.