You're on the internet so you should be expecting every form of treatment, people here don't know you so they mightn't know how sensitive you're to words and treated everybody like the way the expect to be treated. While people use harsh words, don't forget they're trying to correct you so they're not actually doing you any harm but good. People response to harsh words more than calm words as they won't want to experience same feeling again so they try to better whatever they were doing wrong. It's also frustrating for the senior members because they get to correct newbies constantly for the same mistakes they keep making so you expect them to have some outburst sometimes by do understand that everything been done here when it comes to corrections is done for your own good so you don't get banned from the forum.
Some accounts are just trolls and they won't change, some accounts can only change in harsh conditions while others can change in the condition that you explained. We can't all be showing same emotions. Things need to be balance and for that to happen we need both the calm condition and the harsh conditions for the newbies, they'll learn form both condition. If you go easy on some newbies they mightn't take corrections and continue in their ways and become a nuisance to the forum. Just imagine if plagiarism wasn't punishable by permanent ban, many newbies won't have been taking it seriously and would have been plagiarizing contents but because they know the harsh consequences, most of them avoid breaking that law.