I think that the hovercard is already rather large and full of info. There's only one suggestion I'd take:

• Location can be linkified to Google Maps.

PR welcome just for that

Would it make sense to "linkify" the location on the user profile page as well (as a separate feature)?

The HTML of the hovercard of some random user is as following:

<details> <summary>hovercard HTML...</summary>

<div class="Popover js-hovercard-content position-absolute" style="display: block; outline: currentcolor none medium; top: 950.7px; left: 425.35px; z-index: 100;" tabindex="0">
  <div class="Popover-message Popover-message--large Box box-shadow-large Popover-message--bottom-right" style="width:360px;"><div><div class="pb-3 px-3">
  <div data-hovercard-tracking="{&quot;actor_id&quot;:55841,&quot;user_id&quot;:7574,&quot;user_login&quot;:&quot;anurse&quot;,&quot;subject_type&quot;:&quot;Organization&quot;,&quot;referrer_controller_action&quot;:&quot;profiles#show&quot;}"></div>
  <div data-hydro-view="{&quot;event_type&quot;:&quot;user-hovercard-hover&quot;,&quot;payload&quot;:{&quot;userId&quot;:&quot;7574&quot;,&quot;subject&quot;:&quot;organization:6476660&quot;,&quot;client_id&quot;:&quot;1601513644.1548339231&quot;,&quot;originating_request_id&quot;:&quot;DC20:3FB79:11746C9:1A132F1:5DA0A953&quot;,&quot;originating_url&quot;:&quot;https://github.com/hovercards?user_id=7574&amp;subject=organization%3A6476660&amp;current_path=%2Faspnet%3Ftype%3Dsource&quot;,&quot;referrer&quot;:&quot;https://github.com/aspnet?type=source&quot;,&quot;user_id&quot;:55841}}" data-hydro-view-hmac="5eae97e92cf81f469409bc02f612cec832810c12d5e378c4defbeb53f4cc76cc"></div>


  <div class="d-flex mt-3">
    <div class="flex-self-start">
      <div class="rounded-1 overflow-hidden">
        <a data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:profile" href="/anurse">
          <img class="d-block" alt="@anurse" src="https://avatars1.githubusercontent.com/u/7574?s=180&amp;v=4" width="60" height="60">
</a>
          <div class="d-block f6 bg-purple no-underline text-bold text-uppercase text-white text-center">Pro</div>
      </div>
    </div>

    <div class="overflow-hidden ml-3">
      <a class="f5 text-bold link-gray-dark no-underline" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:profile" href="/anurse">Andrew Stanton-Nurse</a>

        <a class="link-gray no-underline ml-1" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:profile" href="/anurse">anurse</a>

      <div class="mt-1">
        <div>Senior Engineer <a class="user-mention" data-hovercard-type="organization" data-hovercard-url="/orgs/microsoft/hovercard" href="https://github.com/microsoft">@microsoft</a> working on <a class="user-mention" data-hovercard-type="organization" data-hovercard-url="/orgs/aspnet/hovercard" href="https://github.com/aspnet">@aspnet</a> and the odd <a class="user-mention" data-hovercard-type="organization" data-hovercard-url="/orgs/dotnet/hovercard" href="https://github.com/dotnet">@dotnet</a> thing. <g-emoji class="g-emoji" alias="canada" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f1e8-1f1e6.png">🇨🇦</g-emoji> </div>
      </div>

        <div class="mt-2 text-gray text-small">
          <svg class="octicon octicon-location" viewBox="0 0 12 16" version="1.1" width="12" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M6 0C2.69 0 0 2.5 0 5.5 0 10.02 6 16 6 16s6-5.98 6-10.5C12 2.5 9.31 0 6 0zm0 14.55C4.14 12.52 1 8.44 1 5.5 1 3.02 3.25 1 6 1c1.34 0 2.61.48 3.56 1.36.92.86 1.44 1.97 1.44 3.14 0 2.94-3.14 7.02-5 9.05zM8 5.5c0 1.11-.89 2-2 2-1.11 0-2-.89-2-2 0-1.11.89-2 2-2 1.11 0 2 .89 2 2z"></path></svg>
          Seattle, WA
        </div>
    </div>
  </div>

    <hr class="ml-n3 mr-n3">


      <div class="d-flex flex-items-baseline f6 text-gray mt-1 ">
  <div class="mr-1 flex-shrink-0">
    <svg class="octicon octicon-organization text-gray-light" width="20" height="16" viewBox="0 0 16 16" version="1.1" aria-hidden="true"><path fill-rule="evenodd" d="M16 12.999c0 .439-.45 1-1 1H7.995c-.539 0-.994-.447-.995-.999H1c-.54 0-1-.561-1-1 0-2.634 3-4 3-4s.229-.409 0-1c-.841-.621-1.058-.59-1-3 .058-2.419 1.367-3 2.5-3s2.442.58 2.5 3c.058 2.41-.159 2.379-1 3-.229.59 0 1 0 1s1.549.711 2.42 2.088C9.196 9.369 10 8.999 10 8.999s.229-.409 0-1c-.841-.62-1.058-.59-1-3 .058-2.419 1.367-3 2.5-3s2.437.581 2.495 3c.059 2.41-.158 2.38-1 3-.229.59 0 1 0 1s3.005 1.366 3.005 4z"></path></svg>
  </div>

  <span class="lh-condensed">


Member of


<a class="link-gray-dark no-underline" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:organization" href="https://github.com/aspnet">ASP.NET</a>, 

  and 4 more

</span>
</div>



  <div class="sr-only">
    Press escape to close this hovercard
  </div>
</div></div></div>
</div>

</details>

Trigger an hovercard in the console with:

$('[data-hovercard-type="user"]').dispatchEvent(new Event('mouseover'));

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