First, a plug for agent86's great skill planning tool, which I highly recommend everybody play around with:
http://agent86.nfshost.com/glitch/skill/
However, I fear that people may be using the tool without considering what it is or how it should be used. I have come across some people who were begging for food at level 10, and when I examined their skills saw they had high BL and mining, but nothing else past level 1. I want to point out a few things which make following the skill order of the tool a bad idea (not just from the perspective of gameplay or community, but from the perspective of trying to minimize skill completion time):
(1) If your goal is to minimize the time it takes you to get all the skills, a very important part of that is speed learning. Unless you have someone else providing you with donations, you are going to be severely hampered by a lack of high valued items.
(2) While in theory, mining provides gems/ore and eventually ingots for donations, you cannot mine if you do not have ample energy. The very early levels of animal kinship or harvesting skills are not sufficient to generate enough energy to do much more than continue gathering food. Additionally, the leveling you will do from donations means that you will lose more energy over time, which only increases the need to have some sort of energy gaining skill. Even mining 4 requires 7 energy per swing, so without ample food you will not be able to engage in mining for very long.
(3) Donations for constant faster learning are expensive. Yes, if you can manage to do it for long enough (because of ample food supply), and you have enough bags, and you have enough time, you can make enough to handle donations and buy food at auction. However, if you don't have enough of an initial fund, you won't be able to get the process into full swing quickly. Ignoring fast learning, the time cost of getting up to AK-V first is about 4 hours added to over 40 days. However, if it helps you get your mining operation up and running faster, the added time cost will cancel out.
Those are the only points I have discussing why following the skill list without thought isn't optimal time wise. However, there are other reasons not to follow the skill list to the letter.
(4) If you spend the first 17 days just getting better learning, mining, and teleportation, you are going to be practically unable to do anything except mine, donate, and buy things at auction (and depending on if you can build up a store of bought food or not, you might not be able to do any of those things either). If that is enough for you, so be it, but there are large chunks of the game which you will not experience for quite a while.
(5) Begging is not a good social behavior. I don't know if begging for food has the potential to get you enough to get your mining operation up and running, or if it can happen in a timely fashion, but if begging ever becomes widespread, sympathy and charity with both dry up quickly. Unlike the real world, where a number of circumstances beyond our control contribute to poverty, there is NOTHING in game but bad decision making that leads to poverty. If you are past level 5 and you can neither afford food nor can you gather it on your own, you have made a mistake (which can easily be fixed by making a new character). If begging becomes prevalent, people will come to this realization, and handouts will stop. Therefore, even if you don't care about the impact constant beggary has on the game experience for others, you should at least care that even if it is currently a viable way to jump start a character, it won't be for long. Moreover, an increase in begging (and subsequent decrease in generosity) will negatively impact the people who have a legitimate case to ask for spare food (e.g., just spent last bit of money on a house, had already nibbled all the pigs in the area, and didn't realize they were down to their last stack of food). If you have any humanity, you will not contribute (through systematic planning combined with extreme stupidity) to turning the community against those who need help due to small amounts of honest carelessness. Please, think of the children (who are more likely to make small, innocent mistakes and need help in return).
In short, if you're going to be a min/maxer, don't do a crappy job at it. It affects you, but it also affects the rest of us. If you don't have a friend or a second character who can support your need for food, do not blindly follow the skill route laid out by agent86's tool. It isn't optimal, it likely isn't fun, and it may have a negative impact on the community as a whole if it becomes wide spread.