Edset
It is a Military standby runway and so bigger that your average taxiway......that is way it attracts the eye of pilots.
You are correct that it is marked as a taxiway however you are unlikely to see these markings untill you are committed to a landing or go around, what is most unlikely is for an aircraft to land on the military standby runway/ taxiway if another aircraft was on it as these incidents all happen in daytime VMC.
I agree that this is a problem at this airfield and perhaps it should be addressed by putting a white strobe light each side of the runway threshold to attract the eye of pilots on approach.
What won't stop this happening is sixteen pages of posts telling these pilots what idiots they are, it is clear that this airfield tricks pilots into making a mistake and so measures should be taken by the airport authority's to make the mistakes less likely.
As for those who still think these pilots are idiots for making this mistake that you could not possibly make it is time to take a look at your attitude because if you don't it is only a matter of time before you are the subject of pages of "advice" from the pprune guild of perfect pilots.