Ha, you make some good points and I would be ok with those words. But just because the root word (inflame) and some of its derived words are useful, that doesn't mean that we need to allow all possible prefix and suffix derivations of that root word.
Wow. You really want some arbiter of which words are "allowed" or not? That sounds like some real Ministry of Truth type shit. It seems especially weird on a tech site, when tech jargon has historically been rich with wordplay and word construction.