As always, my first thing to refer you to or to do myself is to search on the board with twcjr as the poster. That will get you 4 threads in which this was discussed in one degree or another. You should probably read the threads and not just Tom's posts to see what he was replying to. That being said, here is a pertinent and succinct post that he made to a question by Bette.
Bette, only a gross misunderstanding of the nature of reality would encourage suicide.
Suicides, such as the one you describe, are not just a re-boot that gets you back to where you started last time -- it is more like a hard crash that hangs your computer and forces a reboot when you haven't saved for a long time. They are destructive in the big picture as well as in the little picture -- it represents a very high entropy termination that makes future success more difficult -- A barrier created that now has to be surmounted -- a hole that you dig for yourself that you now have to climb out of. One has to restart from where one left off, not from where one began. If you end an experience packet with high entropy, you create a difficult transition and you start the next one with that higher entropy as a burden -- you have to keep whatever you earn -- evolution or de-evolution. Having failed once makes it easier to fail again.
Unfortunately, many people do have a gross misunderstanding of the nature of reality -- and thus your concern is a real one.
Here is another post clarifying this somewhat.
Every intent put into action through free will choice has consequences.
The larger consciousness system does not seek vengeance, or retribution -- no one is directly punished or rewarded in the usual little picture sense of those words. Karma and reaping what you sew are both good concepts but you have to look at them from the larger perspective of: You are the sum of your intent driven choices. When bad choices (increases entropy) follow poor intent you pay the price of de-evolution, failure to grow -- one way or another, now or later, these errors will generate problems for you. When good choices (decreases entropy) follow correct intent you reap the reward of evolving to a state of greater awareness and personal power, satisfaction, significance, and love -- one way or another, now or later, this growth will make your life more joyful and productive.
Suicide is a specific intent/choice pair that falls under the above discussion of karma. There is very little, if anything to add to what was said in the previous paragraph. Suicide is considered an experience packet failure if you prematurely (much growth opportunity is still left on the table) end a viable experience packet because you got so twisted up with belief traps and ego that you fail to be aware of or engage any of the usually abundant growth opportunities. Failing to complete your mission by failure of intent quality may cause those who help design and plan your missions to wonder if perhaps you are not ready (sufficiently evolved) to take on a challenging humanoid role in PMR. See the first paragraph above. If you simply by chance or accident have dysfunctional brain physiology or chemistry, then that is a different thing.
In the big picture, acts by themselves are not fundamentally important (moral, good or bad), the intent motivating the act is important.
So, anytime you hear that a specific act is always right or wrong without reference to the intent or motivation leading to that act, you know you are most likely listening to dogmatic little picture belief-trap-crap. A general rule: little picture absolutes are usually wrong headed.
It would be worth your while to read all of these 4 threads for maximum information since so little effort would be required. If this does not answer your questions to your satisfaction, please ask further.
I looked in the index on the Wiki but suicide is not included there, only self destruction of mankind in general and did not seem to be including suicide in the discussion. I presume that suicide is not directly mentioned in MBT
and do not remember it.