Q:I looked through the faq, and I saw a question similar to this, but I've been hearing that tumblr (not missing e itself) is deleting any accounts that are using missing e. I uninstalled it just to be safe, but is this true?
No. Tumblr has recently demonstrated (please read) that while they do not desire their users to install Missing e, they will not remove accounts for using it or any other extension. Instead, they have opted to limit the amount of technical support these users can receive.
There are many times that users have been suspended for inappropriate activities, but not one case I have ever heard of where Tumblr cited Missing e use as the cause. In any case where you hear this, it is usually misinformation, or assumptions made by a small number of users not based on facts.
It is always best not to propagate rumours as facts.