Currently, hyperlinks in "About me" and "Website link" in our user profile pages are disabled for low-rep users in order to prevent from malicious links. See this answer for details.
Hyperlinks for Twitter and GitHub in profile are, however, enabled even for low-rep users. In SOja, I found a possibly-spam user who links to a spammy account on Twitter. So how about disabling these links for low-rep users?
To be clear: this proposal is to make it so that the user can still add the link, but you can't click on it to go to the new page.