You didn't say "some pre-owned Tanfoglio are presumptively suspect," above. The implication of that CLARIFYING statement seems to be that "EVERY pre-owned Tanfoglio is presumptively suspect."
Walt, buddy, pay attention: there's no need to clarify what isn't ambiguous.
The quite clear statement, "Pre-owned Tanfoglios are presumptively suspect," obviously applies to
all used Tanfoglio pistols. There's no need to add the limiting modifier "some." The key word is "presumptively." IOW, any used Tanfoglio pistol is
presumed suspect until proven otherwise. Some models may run fine and therefore rebut the presumption, but others don't.
You can dispute it all you like, but Tanfoglio pistols have developed a spotty track record that anyone can research by pressing their Google button. I've owned them and have personal seen problems with Tanfoglio pistols belonging to others on the range.
Your experience merely indicates you've been luckier. Glad to hear it.
Buying used guns of any variety can be a crap shoot -- especially if you're inexperienced, don't know what to check, and you can't try them out before you buy.
Good advice, but at least at two of the LGS around here, they'll permit you to do some limited test-firing with factory ammo of a "pre-owned" handgun in which your interested (which the LGS's gunsmith has first vetted for safety and function).
Regardless, and as you're well aware, there have been many past posts on THR and other boards reporting
both cracked slides and frames on Tanfoglio pistols, sights that fly off, et al., not to mention the less than stellar "customer service" that ensues when you have to return the pistol to EAA for warranty work (For the OP: EAA is just the importer, not the maker).
So, yes, the "presumptively-suspect" warning applies to the OP's prospective purchase here ... Buyer beware