Winning a bet is not all about the amount being involved or staked down on a particular bet while gambling, it's goes along way either the strategy adopted and the pattern used in playing, it's good enough to see a numbers of strategies and techniques gamblers have shared as their experience which had work for them in one way or the other, but a gambler also need time to study his own unique pattern which may obviously be different from others' and develop it of which this same path is how others have also come up with their own recommended strategies that once worked for them, ifnyoubsense something then make moves.
I agree with you, it makes no sense to try and follow a strategy by someone else that we heard about and was sold to us as a successful gambling strategy. We need to invest our own time and make a decision for ourselves if the strategy suits our playstyle. When it comes to sports betting and casino gambling I would be careful to trust other people who want to sell us their profitable strategy. Just because they made money with it doesn't mean we are going to do the same. It could be that they were lucky in the past and the strategy is not really that good. It also comes down to our own gambling habits and how comfortable we are to stick to one strategy. For me it works best to switch around with different strategies. For example there are days where I blindly follow my martingale strategy, there is no real decision making to be done. When I am tired it's the best strategy for me. And then there are days where I want to be more active and change my strategy.
It is not that necessary that everyone should develop their own betting strategy
It is not everyone that has the capacity to develop their own strategies but to me what is very important is whichever strategy you adopted from someone should be tested and retested by you to be very sure that it is working for you then you can continue using this strategy. Do not follow any given strategy blindly because someone else won with it.