Should we lower-case custom property names?

[rpiazza]

STIX 1.x allows custom properties - but their names are unrestricted. In STIX 2.0, custom property names have a strict format - including no upper case characters. Should the elevator translate those names and lower case them - or would that cause too many property name collisions?

[gtback]

I'm curious what other people think, but I would support lower-casing all custom property names and then issuing a warning on any name conflicts (but if you have different properties that vary only based on case, you're asking for trouble anyway).