Old-timer used in a sentence

Old-timer in a sentence as a noun

Meh, I'm an old-timer and you know what?

As an old-timer who used to be very active but isn't anymore I agree with you.

As an old-timer who started web programming on perl/cgi I've always found rails programmers rather arrogant and a bit off-putting.

Of course there are more mediocre programmers now because there are orders of magnitude more programming jobs, but there are more great programmers too, and it would very foolish to write off someone's talents simply because they do not share the same arcane but relatively useless knowledge that an old-timer posesses.