[bastawhiz]

> any parser encountering non well-formed XML will reject it outright.

Ah, I see you're new to parsing XML.

[Aeolun]

Oh, it will be rejected alright. And then you're forced to override the parser, or to manipulate the XML before parsing it because it makes business sense to not have the source fix their XML for some reason.

People and machines are just utterly incapable of outputting valid XML.