I think negative feedback is too strong if it's based on only this post:
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Neutral feedback should be more than enough to point any potential buyer towards that post, so they can make their own decision. I kinda expect people who pay thousands of dollars for hardware to take their own precautions anyway, and not just trust anything they see online.
Normally I would be in agreement with this, and at first I had the same reaction. But, even before seeing SFR10's reply just above I looked through the OPs posts, and decided SFR10's precautionary red-tag may not be out line after all.
Newbie whitepunk has a point about the locked thread though. @YCTMatt: it's better if you unlock your topic, instead of asking people to contact you on (scammers' paradise) Telegram.
That's a red flag, but it's far from being the only one. All the photos on the telegram channel seem staged, and the prices of the equipment are on the "too good to be true" side of the spectrum. At this point I can't help but agree that dealing with this user poses a high risk.