thats not bug abusingĀ 
about ramp i think its the correct way to pwn noobs that when u were fighting near ship throw a nade, and then run at ship after being shooted and having a lil of health, if you dont want that happens you should try to be far the ship or dont nade ppl that has gang tags as they can attack you more easy.
its hard to make most of ppl in lvp stop doing that
and about the ship top as in da pic, if u know that if u get there ppl can hurt u, then why you go there?

about ramp i think its the correct way to pwn noobs that when u were fighting near ship throw a nade, and then run at ship after being shooted and having a lil of health, if you dont want that happens you should try to be far the ship or dont nade ppl that has gang tags as they can attack you more easy.
its hard to make most of ppl in lvp stop doing that
and about the ship top as in da pic, if u know that if u get there ppl can hurt u, then why you go there?