I think it's likely, but it will need a lot of work to build software to hide your traces. Note the caveats, however: most ordinary people will not have the for

I think it's likely, but it will need a lot of work to build software to hide your traces. Note the caveats, however: most ordinary people will not have the foreknowledge to find and use such a tool. Second, think of all the compromising posts -- rants about employers, accounts from cheating spouses, political dissent, etc. -- that have already been written. The day will come when some kid will download a script, let a crawler loose on the web, and post the de-anonymized results for all to see. There will be interesting consequences.