I did this post initially to talk about that thread you linked, not so much as a reply to you directly, but it turned into more of a general thought on war decs and the change in behaviour and the mechanics so far.
There is no doubt that the structure of war dec costs is an issue in the disappearance of small war deckers, but an even bigger impact which is not taken into account by the two people mentioned though I am sure that @Black_Pedro knows it is that the number of people refusing to log in and contest or even continue to play in hisec after war decs. This was the major impact to small war deckers and well above the impact of costs. I was in a thread three years ago where a small or solo war decker lamented that no one that he war decked would fight or contest and that is what CCP has to deal with first and foremost.
This high cost against major alliances is sort of meh, in that it takes it out of reach of small war deckers, but then again every large alliance will have multiple solo or small gang war deck’s if this was not the case, what is the correct balance for that? To be blunt I am having trouble working that out. Well I could argue that having the ability to blap a hisec structure to remove the war dec and punish them is a good way, if the large alliance can be bothered to set up a hisec war dec group that is.
The blanket war decs aimed at just getting passing targets in the pipes, mission and trade hubs are a major issue and are a big turn off to many in hisec who got a war dec because they were seen passing though in a freighter or Orca and then never saw them, because the war decker was hoping that they would be foolish enough to do it when at war. One hell of a boring turn off. So in that case leaving it as it is now with corps not having a structure being free of war decs will end that cycle of destructive madness and yet that damages small war deckers. Perhaps CCP needs to look at size of war decker enabling or denying different targets? Perhaps have a table of costs based on size and ability, which also locks in the war decker to prevent them chopping and changing corp numbers by war decking with one man corps and then piling in the numbers.
People can argue about this or that, score points, start stalking others make troll posts or whatever, but if the defenders have no way to compete or feel that it is pointless then nothing will change the situation as it is.
CCP have a hell of a job in trying to balance this and part of that is dealing with a massive imbalance in hisec based on the top three, PIRAT, Marmite and RIOT, it is no longer the top five. What is happening now is that certain groups have set up to take out structures and many of them are calling to make blapping structures easier which is something that CCP should avoid, in fact CCP needs to go the other way on structures defensibility in terms of making them better at applying damage and give better bonuses to hisec structures indy so people want to take a risk, but that poor defensive survivability is an issue.
One thing is for certain, CCP needs to keep a close eye on people coming back and not putting down structures, and if they do make them able to be war decked again by the blanket no show war deckers then they need to be prepared to lose those players again.