I couldn’t comment on all 10 things, so I chose a few to comment on:
First of all, thank you for these comments.
To be fair to some of those people, many of them have had quite some hard time in the hands of rabid Anti-Catholics who will usually not listen to reason and insist that we Catholics are going to Hell due to this or that.
These then subconsciously think ‘Protestant=Anti-Catholic’ because of the negative experience and get (sadly) all rude and hateful to any Non-Catholic they meet, even to a more cultured poster who has a more open mind and does not have any Anti-Catholic sentiments. Unfortunately, this just turns them into clones of the people they are trying to ‘fight’ with.
If any wrong is committed, then the apology is accepted. Don’t worry; you’re not the only one.
That is because many people have different interpretations of the word ‘Roman’.
Some choose it for convenience and familiarity, or because they are a part of the Roman Rite of the Catholic Church, while others disdain the label due to its origins as an Anti-Catholic canard, or because they are not part of the Roman Rite, but are part of the Eastern or Oriental Churches.
To sum up, IMHO it is better to use the word ‘Roman’ when referring to the Roman Rite Church, and ‘Catholic’ when referring to the Church in general.
IMHO, Some of the main faults that many Catholic posters (myself included

) have here is:
-Some tend to confuse the practices and beliefs of one church with another (even if they are on the same Denomination)
-Use of the word ‘Protestant’ as a blanket term, which can lead to confusion at times and might lead to misunderstanding
-Many usually get their knowledge of Protestantism from a specific source which might not even be the beliefs of the denomination that the author of the source belongs to (it might even be an author’s personal belief and thus is not representative of his group) and take it as general Protestant belief
-Particular posters may have been exposed to many Anti-Catholic sources and authors, many of which (based on personal observation) usually come from ‘Low Church’ Protestant Denominations rather than ‘High Church’ ones, which again might lead to a tricky situation involving someone from the latter group
-In case of converts, whatever they may have been taught or learned in their former Denominations may not hold true for the other one; for example Poster A came from a specific Denomination which teaches OSAS, but Poster B came from another church which does not teach it.
So take for example, there is a chance that Poster A might assume subconciously that Protestants (as a whole) teach OSAS, since that was what he was taught in his church.