Could Mojang add an option to enable/disable the default profiles "Latest Snapshot" and "Latest Release" because everyone who is not bored enough to make and customize their profiles don't need these...
There is already an option for that. You don't have to enable snapshots.
Redstone Cutters would "cut" Redstone Wire, preventing 2 Redstone wire "blocks" from transmitting charge towards each other, acting as if they were separate. This would allow for more compact redstone circuits, as they wouldn't need to have 1 block of space between 2 wires to prevent them from interfering with each other.
Suggestion: Endermen pick up items. That would be a small change, but if picked up block items are held like regular blocks by the endermen, this can be used for automatic block placement, offering many possibilities for farms without introducing a big new mechanic or being a too easy solution (would be similarly complicated as automatic block breaking).
Since Notch ate the wrong mushroom. Why not also add a flower biome with giant flowers everywhere? and instead of Mooshrooms we have flower creepers that explode confetti and give you some flowers instead of killing you!
Yes, I know there's 650 pages. And yes, different types of creeper's sounds like a good idea, even if ones that don't blow you up are a little counter-productive. Maybe just have the skin variation for ones that spawn on the mushroom island Biome.
I have some building suggestions: Stone Slab with connected textures, full stone slab block, sideways slabs, Pillars, diffrent colour redstone lamps, (item id 17:12 placeable in creative), Glass panes for on the ceiling instead of windows, stone brick walls (like the cobblestone walls).
To bring the coffee to the game, it would need to bring the sleep/rest function as well. After the last sleep (disregarding about the time length of it), the player can stay awake for 4 days (in-game time, of course). After that, the player will start to feel sleepy and will need to rest. To come back to work quickly, he can drink a coffee bucket which will give him more 2 days to stay awake.
The coffee wouldn't just end the sleep/rest need for the next 2 days, but would give the player more energy.
The energy makes you faster and a little bit stronger for 3 minutes. However, it won't make you more resistant to wounds, falls and hits (lava/fire and attacks) like the potions does.
The more coffee you drink, the more energy you get (not accumulating over the energy itself, only on its time - going up to 12 minutes only).
The coffee could actually be "potionable" using sugar, so you can make it last longer for your sleep to come back (up to 4 days only) and have more 20 minutes (making it 30 minutes on total).
The sleep bar (which could be illustrated by the famous sleep sign, the letter "Z") would have 10 bars just like the others. One single (1) coffee bucket would completely fill up the sleep bar, so it won't accumulate. However, the more coffee you drink, the more energy you can get (up to 4 coffee buckets only).