Current "tipsy" popup on the page where I can see the list of comments is pretty short. Lots of developers are using 80 column hard wrapped git commit descriptions in their repositories. If using such notation, then the tipsy popup looks like this:

After changing the width of this popup to at least 80 characters, the popup looks much better:

I think it would be better for Bitbucket to increase the .tipsy-inner's size from 56 characters to 80 characters.

As a workaround, user can use plugins like Stylus or Greasemonkey to hot-patch the CSS:

    .tipsy .tipsy-inner {
        max-width: 80ch !important;
    }

but I'm not sure if there's any reason why this shouldn't be the default?