Apparently, back in 2006 Malaysian authorities were considering the expansion of their highly-restrictive
Printing Presses and Publications Act 1984 (T-H-L) to include electronic media publishers. Nothing seems to have come of it at the time, but maybe now they're finally getting around to trying again?
I suppose there's some potential for this to turn into something like the Turkish situation if there's something on WP they really don't like and aren't allowed to remove, but I doubt it will actually come to that. If Malaysia were in the Middle East, maybe, but since they're not...
It occurs to me that it would help if someone did an international survey of how the word "publisher" is defined under law in various countries with respect to website operators - but the results would also be pretty depressing, I suspect. Which is to say that in most countries it probably isn't clearly defined at all in that context, just as it isn't here in the United States - which means these things are usually decided by judges, based on easily-overturned case law, and you can't be sure of what the definition is from one year to the next. If that's changing (as it might be in Malaysia), then it's probably going to change for the worse, and no doubt we have the Russians to thank for that.