Durran, There are lots of good and legal reasons to use Freenet. Most people assume that tools like Freenet and Tor are for criminals - and yes, I have a feeling that there are some criminals who use anonymizing tools - but one good example might be computer virus
Dear Durran, There should not be anything which can be clearly traced to your usage, as long as you use at least "low security" (not None!). Forensic analysis might still reveal stuff, however, for example from browsers leaking memory into swap or disobeying caching policies even in incognito
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