Advice is pointless, especially if it's trivial. Furthermore, advice ignores the frailty of human nature. Humans are weak and susceptible to manipulation. And the marketers at casinos, bookmakers, and prediction platforms don't earn their salaries for nothing. Furthermore, I've written many times that when it comes to sports betting and prediction platforms, no one discusses strategy; everyone just talks about discipline and the need to play with money we can afford to lose. That's true, but it's trivial. Why are people afraid to discuss strategy?
You discuss strategy where strategy actually works, you mentioned sports betting, prediction market, this and some other forms of gambling as nothing to do with being strategic when the discussion is centered on how to win and make money, we can only start talking about strategy when the discussion shifts from how to win to how to effectively manage bankroll so as to preserve savings and also enjoy longer playtime.
There are games where strategy is the main mechanic to wining, that is, winning mostly goes to who ever is or turned out to be more strategic, and their strategy helped them to reach the goal first, but unfortunately, such type of games isn't common in gambling especially online gambling where time matters between two or more players.