It was confirmed as an exploit by Kryo some time ago iirc. Its also not a big deal, its a powerful strategy that works well when your team is winning just like every other strat that requires a lot of consumables. If your team is on the back foot stacking minions is just one of many ways to put all your eggs in one basket and go for broke, though it by no means works every time.
Here's a thought: nuke the general as a team and watch their investment disappear into thin air. You need team coordination to counter tower rooks, healing sednas, and many other strats, so stop trying to hero everything yourself and start typing to your allies.
It was early game and i don't usually spec that way
You also can't summon very large numbers of minions at the start, and they are irreplacable since the mana cost and gold cost is relatively high for a low level character. So kill the minions and you've just achieved a gold advantage over your opponent.
If you're playing against a general and they're summing large packs of minions during mid game, buff your armor. Theres also several armor items that can reflect damage or activate a shield when you're hit which will help since the # times you're getting hit will be quite high, even if the damage isnt huge.
If you've reached the point where you have overcome mana issues, use your nukes on their minions...How long do you think a Sedna player lasts if you kill their 30%-every-10-seconds priests? This is one of the first things to consider when playing against Sedna in a mid-game duel.
My conclusions on this issue are that minion stacking is a good mid game strat that doesnt really hold up late game. Compare pumping gold into minion stacking every time you push to buying mage slayer or ashkandor.
