[P-Marlowe]

I do not see "Love thy neighbor as thyself" or Do unto others as you would have them do unto you" as being even the slightest bit self-sacrifcing

Try practicing it sometime.

[From many - one.]

You don't kow my private life as I don't know yours.
But...
I practice it on these threads for all here to see.

When I respond to a courteously worded post, I try to be at least equally courteous in response.

When the other poster is rude, I call them on it and become increasingly more terse in my responses. I try not to be rude because that is not who I am.

If I erroneously or inadvertently produce a less than courteous reply, as soon as I become aware of it, I apologize.