It looks like 440 grade stainless and is non-magnetic. It tried with a very strong Neodymium magnet. Also most mash tuns i’ve seen are either made from a cooler, copper or stainless pot and stirred with a motor in the lid, if they are stirred at all, usually just the sparging arm rotates. I don’t think I’ve ever seen one with a magnetic stirrer not even sure how that would work through the grains.
It’s not the numbers but the content, if they are good natured and have knowledge or entertainment to give the numbers will follow BUT people will also watch a dumpster fire. People with high numbers but lack the rest are not influencers. IMHO, People that go around saying they are “influencers” usually are not and are just bullies trying to throw around weight they don’t have to get free stuff or cause harm.