If this is the case, then the plugin should not create the account when a user does not complete the second step, since the account without a functional email is useless. Doesn't that make more sense than having profiles with example.com?
Hi Fred
I find it highly improbable than 128 Greek-speaking users would use addresses such as 03a45df4efa45b999f22312f5c132630@example.com and
09572f1a445274333a259102b2ed08f6@example.com.
There must be some other explanation.