1st, ignore 99% of folks telling you how to play the game....
2nd, nothing is ever absolutely right or wrong...
3rd, if you ever manage to intentionally ram someone more then likely you'll take damage and they wont.
Now here are the few things that are generally verboten but arent (i'll give examples)
Head On (shooting at guy flying at you)
1) if he's flying at you then either he's stupid or he's planning on shooting you. Now when both guys fly a "clean merge" then often an implied fairfight exists. It's not fair IMO to start a fair fight in well matched planes then HO a guy once your going to lose. However there are exceptions even here...
a) your in a plane like a P-47 and are in a fight with a spit16 you need to engae do to E state etc...so you bleed E and get him turning to either extend or force a frontal shot. You give up your E to force a shot and he tries to turn into you to "square up"...hose him
b) the con has more E and goes vertical, you lay low and pull up into his would be "rope" and catch him starting down...again light him up
To many guys whine about a HO when the reality is they need to learn ACM..
Kill stealing
As a general rule kill stealing is frowned on (rightfully so) and is considered shooting at a plane that is so damaged it cant fight (or often even keep flying). Most of the time you wont get the kill but it does happen.
However...
a) A burning plane isnt dead, hell its not even damaged till the wing goes...shoot it
b) A plane missing a part isnt going down, 80% of the time when a guy calls out a kill over range it isnt. If its in controlled flight kill it..
c) If you originally engaged the con you have a right to shoot at it even if some other guy cherried it. If you shot it 1st you can keep shooting it...
d) some guys are fun to aggravate or are poor "team mates". I rarely will swoop a kill but i've got a dozen or more guys I wont help and will swoop a kill from anytime I can. Why? Because I dont like them
None of the stuff you mentioned is an issue BTW. I only hit the silk if I think I can land by the enemy field and play GI Joe...I once landed 5 kills in a chute. I had 3 and got killed (we was a vulthin {I suck at vulching so I only had 3
} and an ack popped me. I bailed and ack got popped...waddled up to the end of runway and popped guys taking off (got credit for 2 more) and we took the field...so when I towered out I got 5 kills