I installed the Add to Any plugin on a client's site. This site uses two loops on the index.php template, to display a "featured" post on the top part of the website, above the regular posts. This created a strange problem with the plugin:
If I set it to add the button automatically, clicking on the button will take me to the Add to Any site where I can bookmark the post on any service (normal behavior). But if I hover on the button and use any link on the pop-up, it'll bookmark the previous post instead of the current one (say, Post #2 will bookmark Post #1).
I managed to solve it adding the button manually, but I figured I'd mention the problem here, in case anyone else comes across it.