I prefer to use the ShareThis plugin along with my ShareThis publisher key for tracking/logging purposes. For some reason that I have yet to work out SEO Ultimate strips the ShareThis buttons from the bottom of my posts on the permalink. This does not occur on the homepage/frontpage listing of posts though.
I have tried disabling the Sharing Facilitator module and setting none on the Sharing Facilitator module and it is still removed. I have also tried disabling the Code Inserter incase that module was the problem, but the buttons are still removed.
If I deactivate the SEO Ultimate plugin then the buttons reappear.
I hope this can be fixed as it is fairly annoying and almost made me defect back to All in One SEO plugin. If I find some time I might comb through the code myself and attempt to find the offending code.