Of This and Other Worlds

I was as surprised as you to learn that Walt burned the raft. Before that revelation, I thought that Locke burned the raft and attacked Sayid when he was looking for the French woman's signal at the end of "The Moth". In the next episode, "Confidence Man", when Sayid confronted Locke about the attack, Locke redirected attention over to Sawyer saying:

So it seems that whoever attacked you has a reason for not wanting to get off the island. Maybe someone who is profiting from our current circumstances. And from what I've seen, you and Mr. Sawyer share certain animosity.

In "...In Translation", Locke uses a similar tactic to cause people to think other islanders burned the raft. What makes his case fall apart is that Locke has a very good reason for not wanting to be off the island: if he leaves the island, he might become paralyzed again. However, no one on the island knows about this, so his arguments make sense to them, but seem suspicious to me.