they dont mark you as arbitrage, you're confusing something, accusing someone of arbitrage is a very difficult and unprovable matter, because their sports line is used by many providers and not just betby
This isn't true at all and I am speaking from experience. Multiple sportsbooks usually use a single provider due to which they ended up sharing information with each other without disclosing the details to the public.
If you are identified as an arber at one site, other sites using the same provider could ban you quickly because of their information sharing tactics.
this sounds like idiocy doesn't it? we also need to confirm the fact that the player has a second account and the same bet, the second fact the player could accidentally place in a loading match. this is just an idiotic theory, nothing more. accusing of arbitration is like looking for a needle in a haystack