Lot of offences going on there by many individuals and companies. However I too would probably choose to break non-enforced laws over the consequences of not helping out a bit with this.
IANAL but: how were the pallets obtained and from whom, how were they transported to the site and using whose equipment and people licensed to drive it, how were tyres and furniture destined for recycling obtained, environmental laws, who hired the crane to them and how was it paid for, who operates the crane (do they have a licence, if not why were they allowed to hire), endangering property, fly tipping, …