Hey there!
I am the staff member who revoked your flag permissions.
As you have already stated you were chasing another player and were placing props in front of them in an attempt to trap them and stop them from escaping. Of course, as you well know, there are many other ways that you can RP this sort of situation, such as using your weapons to put them under FearRP or alternatively, use some sort of formation (Prisoner VIP etc) to stop them from escaping.
You already had three previous notes for flags abuse, which to me insinuated you knew already what you were doing was abusing your permissions as you would have been spoken to previously by other staff members. As such, I deemed there to enough reason to remove your flags since you clearly knew and were aware that what you was doing was against the rules. You were given multiple opportunities by previous staff to cease abusing your flags but continued to do so. However, I can see that you have stated in your appeal that you have learnt your lesson - I hope this is indeed the case.
As for the note you have added, as explained to you when you made a ticket, when the original SIT took place, I attempted to bring you through your SteamID but it stated you were offline. I attempted to bring you three times in total during the SIT but received the same error message. Of course though, I did explain the situation to you when you made a ticket in game upon the removal of your flags.
All the best,
Owen