Tyler1 in particular has been getting targeted the worst of all, and has been calling this out on his stream.
My own games on stream, as well as the games of other streamers, such as Tyler1, have been consistently queue sniped by high elo players who have realized they can run it down for profit by betting against the streamer. The problem with this is that the existence of these sites ruins competitive integrity among games. As you can see in the screenshot, my own stream is on there, among many others. The list shows live streams (unsure of what the criteria is) who's games are about to start, when you are able to bet on them, their win/loss history, and more. However, the website also has a 'streamers' tab which contains links to place bets on League streamers, as well as streamers from many other competitive games.
This site allows betting on competitive esports matches such as League world championships, Dota, CS:GO, and Valorant. Recently LS has taken a sponsorship from an esports betting website (proof)known as.