I hope it's not plagiarized.
I dont think it is plagiarized post, I tried a quick check and it seems a unique post which is not available on other places.
Anyway, the words are hurting my eyes and I am sure it's gonna do the same for others. You do not need to bold and use larger fonts for these. Just keep the regular fonts, you don't even need the bold tag too.
Yap, it hurts reader. He should use normal font size and bold some of the words which is the main idea of the post. I think you are right that he is trying to get attention with the big bold font in order people will read it, but in fact it is annoying to read such big bold font.
Coming up to the topic, he have good and informative points although I believe it has been discussed many times before but still good effort from newbie aside the decision to use big bold font.
I don't understand item #2. Do you mean, using a broker in your trading activities? You don't need your own broker when you trade in exchanges. Since you really don't know the people doing the trading, and that's given already, you should know when to get in and when to get out. If you are trapped in a pump and dump schemes and getting in the wrong time, you will be a bag holder of useless coins. You need to understand the coin before plunging into the unknown.
Maybe what he means is "escrow" for peer to peer trading (selling and buying btc)