user15028: I'm in the tag page, the tags are sorted by popularity, and technic is one of them, as you can see here.

However, If I go to page seven, I see a typo in the tag name.

Hmm, strange. That typo doesn't appear on the first page, and also it does have questions asked with this tag. What's stranger is that all the surrounding tags also have "0 questions" but they do have questions, which I think is SE's fault. Also, it shows the real tag info if I hover over it.
But I'm not focused on that.

So is this odd typo the fault of Stack Exchange, or did someone here make an oopsie? I think it's the first one, right?

user7709: Somebody made an oopsie, but it has been corrected by making techinc a synonym of technic: see https://bricks.stackexchange.com/tags/technic/synonyms.

This often happens with misspelled tags; retagging would work too, but somebody else is bound to make the same mistake again. The synonym will help them find the correct tag, instead of creating a new one (if they have the 150 reputation to do so) or wondering why they can't find the one they want (surely, there must be a tag for Lego Techinc, right?)

15028: <p>I'm in the tag page, the tags are sorted by popularity, and <a href="https://bricks.stackexchange.com/questions/tagged/technic" class="post-tag" title="show questions tagged &#39;technic&#39;" rel="tag">technic</a> is one of them, as you can see here.</p>

<p><a href="https://i.stack.imgur.com/qZnhR.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/qZnhR.jpg" alt="technictag"></a></p>

<p>However, If I go to page seven, I see a typo in the tag name.</p>

<p><a href="https://i.stack.imgur.com/ZZXQa.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZZXQa.jpg" alt="techinctag"></a></p>

<p>Hmm, strange. That typo doesn't appear on the first page, and also it <em>does</em> have questions asked with this tag. What's stranger is that all the surrounding tags also have "0 questions" but they <strong>do</strong> have questions, which I think is SE's fault. Also, it shows the <em>real</em> tag info if I hover over it.
But I'm not focused on that.</p>

<p><a href="https://i.stack.imgur.com/WynP7.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WynP7.jpg" alt="thing"></a></p>

<p>So is this odd typo the fault of Stack Exchange, or did someone here make an oopsie? I think it's the first one, right?</p>
 7709: <p>Somebody made an oopsie, but it has been corrected by making <a href="https://bricks.stackexchange.com/questions/tagged/techinc" class="post-tag" title="show questions tagged &#39;techinc&#39;" rel="tag">techinc</a> a synonym of <a href="https://bricks.stackexchange.com/questions/tagged/technic" class="post-tag" title="show questions tagged &#39;technic&#39;" rel="tag">technic</a>: see <a href="https://bricks.stackexchange.com/tags/technic/synonyms">https://bricks.stackexchange.com/tags/technic/synonyms</a>.</p>

<p><a href="https://i.stack.imgur.com/NmHEj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NmHEj.png" alt="enter image description here"></a></p>

<p>This often happens with misspelled tags; retagging would work too, but somebody else is bound to make the same mistake again. The synonym will help them find the correct tag, instead of creating a new one (if they have the <a href="https://bricks.stackexchange.com/help/privileges/create-tags">150 reputation to do so</a>) or wondering why they can't find the one they want (surely, there <em>must</em> be a tag for Lego Techinc, right?)</p>
