If Nasus got less stacks from his Q, would he still be reliable?

Now let's think about this for a bit, we all have a love/hate relationship with Nasus (among other champions), but we know how the cookie cutter Nasus works...

1. Get a shit ton of stacks on Q
2. Build tank
3. Go Ham on Tower/Objective/Enemy Champion

Now I am not saying he is OP, hell the amount of Nasus players I've shut down with Swain top I can't keep count of. But I do admit how quickly he can get his Q Stacks up and running is annoying from time to time, once he starts rolling in the stacks it's hard to stop him from doing so, not impossible though. But when compared to the other champs that can get infinite stacks he sure gets to do it easier and more often. So what if we cut him back on how many stacks he CAN get per hit. Right now he gets 3 for killing a regular minion, and 6 for killing anything else with it. So what if we lowered it to 2 for regular and 4 for large (or if you wanna be more extreme, 1 for small and 2 for large). Would that add more challenge to him? Would it make him useless? Would nothing really happend that much?

Note: This is not a post to say I want Nasus nerfed, I am just giving a what if scenario is all. If your still gonna downvote this, then so be it, just thought I'd throw something out there is all...