The only way you could hate ROBLOX is if you have never played it lately. So many great add-ons, amazing physics... you can script and make anything. It's much easier to mod than Blockland is, not to mention it actually HAS block physics; if you blow up a tower, it'll actually fall, and fall differently depending on how you hit it.
ROBLOX has 10,000+ users now. I wonder why? Hmm... maybe because it's FREE? And BETTER?
Yes, I used to play Blockland. I bought the full version, in fact. But it sucks compared to ROBLOX. ROBLOX just beats Blockland in 100 ways.