Crackpot is a style of (not) thinking, sloppy evidence. In world affairs, one sign is subscribing to any and all 'theories' sharing a common target, irrespective of their mutual consistency.
Note, I have enormous disagreements with US policy, and share many 'sympathies' with this site, but agree with Russ Waters that it is a complete garbage site as to reliable information.
In any case, all this is a distraction from this thread. Some key points are that while nuclear nonproliferation treaty has many logical flaws, and hypocritical elements, no country has to sign it. Further, if one is interested in enriching uranium only for research reactors, why be duplicitous about it? I can't say I know for sure Iran's intent, but I would say their actions are fairly well optimized to arouse suspicion.