we might stop calling out everything "ooRP" and instead calling it "inappropriate" in a certain sense. - ooRP implies much more than just overkill or the creation of an unfair situation.
ooRP means that someone "is not playing the ROLE of the person he is supposed to play" - and that can hardly be applied to a battlecruiser chasing a starflier. - cause.... it can be very well IN the role of the person that is roleplayed to be a battlecruiser chasing this person.
furthermore - ooRP implies to be violating the RULES as such, while being inappropriate in a certain situation means just abusing certain strengthes compared to others.
a battlecruiser that is chasing and hunting a VHF can even be appropriate. - if some pirate is famous for his actions against the hunters faction - like some "red baron" guy - it IS appropriate to send heavy ships after him to minimize their own losses ( seeing that he is simply better in his fighter than any pilot you have ) - especially for a faction that does not so much care for the process but much more cares for the result.
in that case - it would be rather "inappropriate" to send a lone fighter against him, knowing that this fighter might be "fair" but probably lost - and even virtual roleplayed chars don t really like to die.