<p><em>Update: not all badges in the <a href="https://stats.stackexchange.com/help/badges">the list of badges</a> are trackable in the badge tab of your profile - so badges that don't show up in the badges tab can still be earned (with few exceptions)</em></p>

<p>I noticed that some badges that have been awarded in the past at CV seem to not be available any more (e.g. the "Unsung hero" badge). As mentioned e.g. in <a href="https://stats.meta.stackexchange.com/a/2827/112731">this answer</a> such badges would be beneficial for some types of questions, as the CV community is smaller than e.g. the SO community, and questions receive very different attention. </p>

<p>Further, I believe it would also just be more fun to track some of the "more weird" or "anti-badges", especially like "Unsung hero". I believe the keyword is gamification (see e.g. <a href="https://stats.meta.stackexchange.com/questions/1612/who-decided-what-badges-there-are-and-how-you-get-them">this question and its answers/comments</a>) - something our community could benefit <em>a lot</em> from my point of view, especially in times where more and more people have an idea of data analysis and machine learning, and which could therefore find CV an attractive community. We all see that this works well, especially for SO, where people love collecting them (note that e.g. the excerpt of badges displayed to a profile visitor are the "3 rarest" the user has...).</p>

<p>My questions would be now: </p>

<ul>
<li>What is the reason that some badges previously awarded are no longer available? What happened?</li>
<li>Would there be support for introducing some more badges and (re)inventing some of the previously existing ones (including the "more weird" ones like "Unsung hero"?). Why/why not?</li>
</ul>
