i think its worth noting segwit will have the same effect on node count as 2MB, it will increase requirement to nodes in more or less the same way.
As far as validation time is concerned, it doesn't. Additionally, a 2 MB block size limit is unsafe without additional limitations placed upon it.
and i think we can all agree maximizing node count shouldn't be a major concern, classic nodes are popping up left and right on AWS. keeping full node requirements very low, only opens the door to a sybil attack, and makes it easy to drown out the voices of real participants dependent on the system.
Those nodes are useless due to their concentration.
if anything the barrier to entry on running a full node should be raised to make it easier to hear the voice of Serious participants, participants that matter like bitpay, bitfinex, or tiger direct.
Do you even realize what you're saying? Were you already corrupted by the people on that other (horrible) forum? The option to run a node should always remain as cheap as possible.