proszę o sprawdzenie

In contemporary world there are many places, where people can make graffiti. There are many destroyed and deserted buildings and factories. People painting graffiti can make them look much better and more cheerful. There are many people, who hate people making graffiti and say that they are hooligans. It is not true. It happens that some groups paint bad words or paint the buildings where other live, but they have reason. No one gives them places, where they could paint freely. Instead of complaining, we should rather organize special places and walls for graffitists.

In contemporary world there are many places, where people can 'make' (nie wiem, czy to wlasciwe slowo, bo graffiti to jest cos co piszemy, malujemy) graffiti.
People painting graffiti (ale gdzie?) can make them look much better and
more cheerful.
It happens that some groups paint 'bad words' (nazwij to jak to jest - obscenities) or paint the buildings where otherS live, but they have reasonS. Instead of complaining, 'we' (a kto jest to 'we' osoba na domu ktorej jest cos napisane, ktos z ulicy, ktos nieznany - napisz kto) should rather organize special places and walls for graffitists.