Past participle of a verb created from an acronym
Yes, I think these are generally understandable to people. Converting nouns to verbs on the fly with no morphological markings or suffixes is quite common in English today.
Another example that came to mind:
- EOL'd. (End-Of-Life, referring to product lines)
Yes, it is generally understood, although it might probably also be spelled GPLed. A non-tech example is "He OD'd last night." (OD = overdose, specifically of drugs.)