We have an open issues for rgbif https://github.com/ropensci/rgbif/issues/111 to basically re-evaluate the tools to help users clean GBIF data once they have it in their R session.
See the vignette http://cran.rstudio.com/web/packages/rgbif/vignettes/issues_vignette.html for an introduction.
Do you have any feedback on the data cleaning stuff in rgbif? Especially looking for things that can be better. Pain points.