You could argue it's unprincipled and shameless and I think most people would be annoyed by the behaviour if their personal business is effected by it but there's nothing illegal about the practice. People are free to try offer better deals and services though often times they'll likely be much worse. There have been users and scammers pestering ICOs as soon as they get announced offering to run campaigns for them for little to nothing and there have even been cases where account farmers have gained access to managing campaigns as well and this is something big farmers will be desperate to do so they can just siphon off money to their shitposting alts quite easily.