So weekend trading is good for placing long positions?! And that can work, right? People can trade like that and make a profit if they do it properly! It's trading, after all, each of us can find the strategy that suits them! Of course, people who trade long positions only on weekends will miss this and that, but it does not matter, playing on safe can be less profitable, but at least it's not a loss!
I think in trading many things can work if you have a good approach, do your research, be patient, check your orders from time to time (on weekends)... and if it's profitable just continue with that! If not, change it!