Tbh idk if it's right criteria but alot of people consider fight loses as yardstick for adjusting a person as noob or non noob For adjusting a person a party fairy or not it(fight loses) can be used but not for noob . But then again it's my opinion feel free to disagree .
When it comes to matters of PvP, yes. F losses show the extent to which an acc has engaged in farming, giving and/or receiving. The explanation would be far too long winded so just accept this. The fact you questioned it speaks volumes.