Found solution for a deleted question

My question had been deleted (basically for being not-reproducible). After many debugging sessins, I eventually found the issue, wanting to let the community know, but the question had been deleted in the meantime.

I think deleting the question was not nice.

I think deleting the question would have been OK if it were complete nonsense, or off-topic, but I think it was neither. The only thing to accuse myself is that I didn't understand the actual problem until I found the solution.

Just a clue: I didn't expect GetOptions('verbose=i' => \$verbose) to have a tainted $verbose with value 3, and when using printf(...) if ($verbose > 2); that the error would be

Insecure dependency in printf while running with -T switch...

My fault was to assume that ($verbose > 2) and the way to set $verbose is not relevant for the problem; mostly because print... if ($verbose > 2); is used in many other places without triggering the tainted alert.

So you don't want to know?