My entire thesis is that vigilante leaks like this are a product of the perceived unwillingness of the legislature to deal with the abuse of tax loopholes or to tax the rich at anywhere close to the rate that the overwhelming majority of voters want. If my theory is correct, then saying “talk to your legislator instead” is almost hilariously tone deaf, given that these leakers are probably taking actions into their own hands in response to a belief that their legislator is lazy or corrupt.
More broadly, my point is that singling out individual actors is an ineffective way to stop stochastic law breaking. Decry and punish individual law breakers all you want, but don’t expect it to stop until you at least triage the underlying causes.