Welcome to the Nexus!
If you're looking for information on dmt and extractions, I think you're in the right place
Im sure you'll find quite a few differences between the Nexus and the Shroomery. Do check the links you received in the welcome PM, including the attitude page, wiki and health and safety section.
When you say about the alkaloid poisoning you mentioned, can you give the exact quote or link to what you mean?
See you around!