Snap accept and prey on his impulses.
Or wait a bit, play it coy, like I dunno. not sure I want to play you again...

Best way is to lose, that normally keeps them around

Snap decline so they hunt you.

Dunno,lose a couple matches by playing fishy and then he might be playing to chase his loses against you thinking that your actions are luck dependant!

Has anyone studied the extent of the influence of 1) fast gameplay (incl. snap acceptance; generally, fish hates slowpokes) and/or 2) chatting (at least the use of smileys) on the rematch probability? Losing surely helps, but it's up to the RNG.

The stakes are another factor - the bigger the BI, the less chance there is that the fish has enough funds in their balance to continue.

Somehow I've just managed to engage someone with obvious leaks in a 22-game match at the 3.50s (lol stakes) despite me winning 4 games in a row after a single first loss. Before that, I had a 12-game match with someone who didn't seem a reg either, which was probably facilitated by his winning streaks, though. I did make some fishy plays unintentionally, but the thing is that I never chatted in either case (I sometimes chat back but almost never openchat, don't have the time for it), so mark me puzzled.