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Sure but what about false positives? What about real accounts newer than that? This is a work around but not a good solution.

That's a sacrifice I'm willing to make, personally.

wait if they make a good point that has changed your mind, you discount it if you don’t like the source?

so you prefer authority of the messenger over merit of the message?

In some case yes. If their argument is based on their own personal experience and it turns out that personal experience isn't true.

you can buy old accounts for like $3