Lite wallets and SPV nodes will be upgraded automatically to take full advantage of SW and users will naturally upgrade without much thought.
Not so "automatically". The reason why the devs like soft forks is that they can deploy the protocol changes without having to alert everybody to upgrade (and therefore to explain *why* the change is good for them).
SatoshiDice will be constrained to compete with everyone else and have no advantages.
What I meant is that big junk generating businesses can upgrade to exploit SW immediately, while the majority of the occasional clients will take months to do so.
the average load for 100% full blocks would be around 2MB with only approaching short of 4MB for heavy multisig.
Phew, for a moment I was afraid that Blockstream had relented and proposed SW as a way to increase the capacity and avoid congestion. But with users inertia and a bit of help from junk generators, the "fee market" may still begin in six months or so.
So everything is back to the status quo in diebus bello, and the Bitcoin Stalling Conference had the outcome that everybody expected.
