This should be brought back into the official version of the game. Intersecting walls and the added strength they gave was the last thing making base building somewhat viable.

Only to people who knew about the exploit. More often than not it was only dupers and exploiters who used this method and prevented legit players from ever being able to raid. Base building won’t be viable until duping is gone or they massively buff bases. But even then duping will prevail over any base.