This is an inherently political question where the context is critical. If you are working with North Koreans on detailed plans for disruption of infrastructur

This is an inherently political question where the context is critical. If you are working with North Koreans on detailed plans for disruption of infrastructure for example then you would encounter a different alarms and enforcement than a biotech researcher doing gene splicing experiments. Email lists are extremely easy to set up, make robust, and transfer as necessary, so using tech like that to simply skip around big tech might be an alternative.