I don't understand what you are trying to say. Why is a build-up of feature requests a sign of neglect, if bugs are regularly fixed? Do you consider a build-up of unimplemented feature requests to reflect as poorly on a project as a build-up of unfixed bugs?
A build up of un-triage feature requests can be a sign of neglect or of maintainer overload (the later will probably lead to the former eventually), but you can't tell if that is the case just by looking at an issue count.