FWIW, what I recall of the LP12 is that when it came out, it was genuinely revelatory and did stuff which other turntables didn't do (tunefulness, rhythm, timing). It deserved its cult status, then.
Over the years, Linn brought out various 'improvements'. Some worked, some, er, didn't.
IME, the LP12 is now a parody of itself and no longer worth serious consideration.
But that doesn't mean that all LP12s are dreadful, or all purchasers were conned.
Sweeping generalisations like that do diminish the thread, this forum and, most of all, the poster. We're seeing more of them these days, it seems to me. So, I agree with the OP.
I came here from the Wigwam, because I couldn't stand the prevailing attitude over there and the moderators didn't seem to care. It has its own ethos, I guess, and it's not for me so I left them to it. No problem with that, other internet forums are available, etc, etc...
This place seemed a lot more considered, and posters seemed rather more willing to acknowledge another's POV, even if it wasn't agreed with. Arguments were, by and large, respectful, reasonable and conducted without rancour.
I don't participate in an intenet forum so that I can agree with everybody, or have everybody agree with me. I like a good argument. But there are some who, for whatever reason, can't argue without provoking a row.
That demeans them, not their targets, but they don't seem to realise this.
It's a shame. It risks PFM becoming, like Hifi Wigwam, a refuge for the lowest common denominator.