my sincere advice to newbies will be that if you can afford both (i.e trading and investing long term) you can go about it. But if you can't afford both, it's better you just buy and forget about it for very long time.
This is a wrong advice and very misleading. How will you advice brand new investor who doesn't have any bitcoin investment to go about trading the little bitcoin that he can afford to buy, that's a dumb idea. Do you know that it is impossible to serve two masters at the same time, because you will love one more than the other. If you eventually want to do both at the same time thinking you are smart enough, there is a high chance that you will end up being a trader than a long-term investor, because when you run at loss, you will definitely take from your bitcoin investment to cover up so that you can trade again, and gradually you lose it all.
That is why is said if newbies on this forum can afford both, they should go for it, because I wasn't sleeping when I said what I said, and I know though a person can be a newbie on this forum, it doesn't make them newbie to Bitcoin or neither trading, and likewise though trading may seems risky for early starters, it doesn't mean if they master the craft they can do better as time goes on. So on the contrary, inasmuch as I so much agree and support that people should buy and hold their Bitcoin for long term, I don't discourages anybody who wants to give trading a trial, inasmuch as they are willing to accept the risk involved.