If you create a new Gmail account, as many people do, you can still be tracked with that. Using the same email address on multiple sites allows data aggregator

If you create a new Gmail account, as many people do, you can still be tracked with that. Using the same email address on multiple sites allows data aggregators to match your profiles from each site to build a very comprehensive picture of you. Of course, you could create hundreds of Gmail accounts, but then you have to manage hundreds of inboxes, which you won't do well leading to you missing lots of emails. Maskmail essentially does this for you with extreme convenience.