Self destruction of defense posts when captured ?

[winged turtle]

I think it could be better because if an enemy capture your defense post, if you attack him the defense post will annoy you and you won't be able to strike bake efficiently, so the defense posts is less interesting to buy because it can became a problem for you, while if they are self-destroyed when captured their use
could be more balanced

[twin verge]

oh yes that would be good fr

maybe a small explosion (just erases land, not nuclear)