relax Milanos, as I said, this is not OP farming by definition since they don't raze it. That's why different admins have different point of view about this (hence the word gray area). However this is giving other players lots of advantages by making free OPs so that the taker won't spend much resource and workers for the OPs.
And I believe that we should "invite" Andrew here to clear things up. Rehab can u send him the link to this and tell him that we want to talk about this matter?
You're really going to try and define OP farming? That should be interesting.
I don't believe not razing has anything to do with it. If you take OPs that were built for you by friends, that is OP farming. I'm not saying that was the case here, but I do believe THAT is punishable.
As for different admins having different points of view, I have dealt with this admin as well, and in my case there were less OPs by one person, the person attacked me as well and was annoying in general.
Comparing that to this were the OPs were simply planted there, a whole bunch of them, I would say that this indeed does seem dodgy.
Which is why I stick to my comment: If you are a supporter it is a noob who doesn't know how to defend them, if you are an active player it is friends that are placing them for you.