So someone changed their callsign?
No, potentially using 2 callsigns, atleast this month.
I’m pretty sure I have recently seen cat7, maybe last week.
He didn't get any kills since 8/22, check his plane kills in the scores.
If SAAB only defends against bombers and bombs GVs with a KI84, he’s cat7. Oh, if he also waits with an M3 and then attempts to run away for a green end sortie after realizing the base capture is dead, then it’s cat7
They do have a similar m3 kill count as well... just sayin. Im almost certain they are the same guy. Scoring metrics are almost identical and that is very hard to manipulate. Just like personalities, extremely hard to hide.
I can easily name at least 50 players that will only fight when they have the extreme numbers, plane and altitude advantage. Once they even get the slightest scratch or dent in their skin, they run home to land.
Also not sure to what concerns the OP here either 
Well, if he's using a second account to see the other side and know where bombers are, that's a big problem and this will easily run bomber pilots out of the game. Just a huge waste of time for them to get gamed.