While I was trying to reply on a 2014 post in order to get it reprocessed (unconfirmed report since 2014), I realized I was unable to do so due to having insufficient privileges? Am I missing something ? Thank you in advance
If you're talking about this report, then you can't reply because it's archived. Although it's odd that your profile is still displaying the Unconfirmed Report since it's now closed.
They prob mean this one https://forums.steamrep.com/threads/report.79431/ You are welcome to reply to that one again and I'll take a look at it.