Once installed, AddToAny appears to insert its heavy lump of code at least twice in every page regardless of its settings. Choosing whether the share icons appear at the top and/or bottom control whether the icons appear, but they are always present in the markup.
I find this approach inelegant and intrusive. If I suppress the share buttons from the top of the page, they should not be inserted there, period.
For this reason alone I'm looking for an alternative plugin, despite the apparent functionality of this plugin otherwise.