Previously, user-generated links would often open in a new window/tab. However, kcud_dab found out that there are
security issues with this, so I removed it. You'll have to middle-click links if you want them to open in a new tab.
If people find this disruptive, I could add rel=noreferrer to some of the target=_blank links, but then referrer info would never be sent, which might be undesirable.
That was years ago and nowadays any decent browser sets rel=noopener for target=_blank link. It tells to open the target resource without the new browsing context access the previous document (the engine does not set Window.opener on the new context, its value will be null).