Some other problems with this whole ou-d but it's only equipment thing are
1) you are often relying on hearsay (I heard this mashgiach said etc.. or worse someone on an anonymous forum said).
2) Additionally no one is taking responsibility for this and the ingredients can change (and do change) and you would not necessarily find out about it. Unlike when the hashgocho attests that it is DE at least you know what you are getting.