Even while scalping or day trading, it is still good to use lower margin or leverage. 5x can get liquidated in volaltile market, 3x can still get liquidated in very extreme volaltile market.
Using altcoins? More risks because altcoins are more volatile than bitcoin. When you asset shouldn't have liquidated while using bitcoin, it would have liquidated while using altcoins. I can still prefer 2x for bitcoin, but strictly 1x for altcoins.
Nice suggestion and clarification on which people or newbies out there should read upon and realized this one rather than on directly dealing with leverage or future with zero knowledge.
You should know the difference in between Bitcoin and altcoin volatility difference plus those calculations in between calculation on different level of leverage so that you do at least
having the idea on what part you should make out some profits and what part you should in put your SL's.