I suppose I'll just go point-by point here.
1. I agree that this would be nice, but the loading screen when viewing a project usually goes by so fast it might not be worth the effort. It's still a good idea if it could be implemented fairly easily, but I wouldn't get my hopes up.
2. I don't really understand what you mean by this. If you're going to make a suggestion, you should really explain it to prevent confusion. I think you're referring to modifying the variable watchers, but I'm not sure.
3. I strongly disagree with a comment rating system. Not only is there very little reason for it, but it could lead to anger over comment ratings and people begging for upranks. Something I always point out in Youtube's comment system. Half the comments there are just asking for upranks or overused jokes. I really don't want that happening to Scratch.
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