I'm usually a very cautious guy when it comes to email addresses on the internet. Rule of thumb: Never write email addresses in plain text (to prevent spammers from harvesting it).
Just a few minutes ago I got shocked because I found out that BitBucket prints email addresses for unmapped user in plain text in the wiki file history.
For example, have a look here:
There are several commits I did before I changed my email address on BitBucket. When I changed my email address, I guess those commits became "unmapped". So now these commits have my private email address in plain text in their links.
I know my email address is now probably recorded for eternity in the wiki's repository, but for the future: Could you please not include the email address in the author field when editing a wiki. For me (and probably not just for me) this is a huge privacy concern.
Also, please hide those email addresses from the wiki history. Don't make it too easy for spammers to harvest email addresses.