It's not an arbitrary choice whether to treat a particular interaction as an employee or as a contractor - the nuances are a bit tricky, but in general it's prohibited to treat it as contracting if it isn't actual contracting but if someone is working what we'd call a standard full time job at a company.
The obvious way (mentioned elsewhere here) is that you can reasonably provide services as a business - non-anonymously, non-pseudonymously, disclosing the exact legal identity of your shell company instead of your personal details.