Probably. They make most of their money on Google search anyway - and with just the queries, no personal context as far as I know. No privacy issues arise her

Probably. They make most of their money on Google search anyway - and with just the queries, no personal context as far as I know. No privacy issues arise here, in fact, it would probably work in incognito mode just as well. Are there any numbers on how much profit they actually make on Google Mail?