Meta keywords field: remove behaviour

I’m at the moment going over all the meta thingies to make our pages more SEO likable 🙂 The meta keywords field for products, categories etc all make an “object” out of my keywords when pressing “,” (comma). This is very very tiring especially when you wanna copy, edit,etc them. I don’t see absolutely no pro side to this behavior and it would be great if we could just have semicolon(orwhatever)-delimited text in there and not some objects that are fix and cannot really be edited, copied anymore. I can only see downsides from that “making-a-fix-entity-out-of-keywords” behavior. It might look nice, but it’s not about how it looks in the backend, is it 🙂
Especially tiring when you have thousands of products to edit!