Increasing number of players using 3rd party tools

[Catwho]

Those still exist and are arguably more disruptive now because they're part of the basic functionality for some of the most popular botting programs, which means that if a S rank spawns in the same zone as a bot, anyone who has access to the associated discord its relays are being sent to will immediately know about it.

There's actually a bot free way for a team to predict where an S rank will spawn. It involves killing the B rank in every possible spawn point you can find (and ignored the A ranks if they're up since they also share a spawn point.) If there's a place the B rank doesn't respawn, that's the spot reserved for the S rank when the conditions for the spawn are met.

Thing is, it's a LOT of leg work, so there's a reason usually a whole Discord channel is involved in the process.