XT is supposed to make bitcoin futureproof, but how is it going to achieve that, when it can be spammed up to ~1.15gb / day, meaning that it'll take just 100 days for a determined attacker to increase the blockchain to +115gb, and around a year to take it up half a terabyte.
Terabyte hard drives are standard now. A year from now 5 TB drives will be standard. That's a worst case scenario and could still be easily handled.
The worst case scenario is that someone starts spamming the blockchain with the 8mb blocks. Then, next thing you know, people will say "ohh these 8mb blocks are full, we need bigger blocks". Then you get 20mb blocks and ~3gb/day of bloat / >1 tb per year. And who is to stop them spamming the 20mb blocks and getting them full too? What's next? We'll be asking for 100mb blocks? This is madness.
Personally I don't believe that even the 750k/1mb blocks are full by legitimate transactions and not bogus transactions. I believe these bogus transactions are created to stir a "debate" about "ohh we need bigger blocks" and stuff so that we can then go on and shoot ourselves in the foot by "accepting" larger blocks as the "natural evolution".
We have to deal with a reality here: Big banks, credit cards, swift etc, don't want BTC to succeed. Bloating it is a very cheap way they can use to kill it. It's much cheaper than a 51% and cheaper than manipulating the BTC market. And it will be FAAAAAAAAAR cheaper to enable that attack vector with 8mb or 20mb blocks.
I think you have just gone Full