This is not real solution, but just a workaround, as you'll loose some information. This may be a big problem for you, or may not be a problem at all, you decide.
I'm talking about this problem, when you go to user's name in last post section and hover mouse over it, you see this:
It is link title associated with this link. To remove this, you just need to remove title. And remove it completely. If someone knows how to really solve this problem, please post it here.
To remove title, find template
memberaction_dropdown
At the beginning you have this code (at least with vB4.1.2, as I'm still on it, but it should look very similar to this on other versions, if not the same):
HTML Code:
<a class="username {vb:raw memberinfo.online} popupctrl" href="{vb:link member, {vb:raw memberinfo}}" title="{vb:rawphrase {vb:raw memberinfo['onlinestatusphrase']}, {vb:raw memberinfo.username}}"><strong><vb:if condition="$memberinfo['musername']">{vb:raw memberinfo.musername}<vb:else />{vb:raw memberinfo.username}</vb:if></strong></a>
You need to remove title part from it and remove it completely. Title part is this:
HTML Code:
title="{vb:rawphrase {vb:raw memberinfo['onlinestatusphrase']}, {vb:raw memberinfo.username}}"
After you remove it, it should look like this:
HTML Code:
<a class="username {vb:raw memberinfo.online} popupctrl" href="{vb:link member, {vb:raw memberinfo}}"><strong><vb:if condition="$memberinfo['musername']">{vb:raw memberinfo.musername}<vb:else />{vb:raw memberinfo.username}</vb:if></strong></a>
Save template and check your forum home. Everything else should work (dropdown menu when you click on user name), except there's no more title with html code shown. Also, when I'm mentioning title, for some reason online status was wrong for me. From picture you could read that I'm offline (in Croatian), but I'was online when I took this picture. Just to mention it.