I think that a list of lessons for what an absolute beginner should go through is more ideal. For example the list might look like:
Basic theory
Harmony
Structure
etc.
The reason for this is because, as pointed out, the student does not know what's best for themselves but then neither does the teacher sometimes on an internet forum. It is not the same as a face-to-face lesson where the teacher can gain a better understanding of their student's needs therefore they do not always teach what is best. The internet may be able to bring people from other continents together but it also limits conversation. A list of the order of lessons a student should go through means that a student can see exactly what they need to learn and what they may want to patch up on. The way the lessons are structured currently do not allow this as the teacher can only have an idea of their student's level and do not know if all the basics and fundamentals have been taught to an acceptable standard.
A one-size-fits-all type of lesson defeats the whole point of what the forum is trying to do. Instead, a guideline for students can enable them to choose a subject that will help them develop as a composer in the best possible way. Once they have decided on what they want to study, students can find teachers who will be able to tailor lessons according to their ability and needs.