It is stated in the blog that you can post answers to your own questions (and that it is actually encouraged). Thus I am considering in part to use math exchange to post answers to some questions I come accross for personal future reference (mostly to quickly remember a concept or an explanation I gave) and also for anyone who might find them relevant.
Can you help me on how this post for example could be fixed:
Initially it was not stated as a Q&A and thus the first comments. Are the additional descriptions in the answer acceptable? If it is not a suitable post, would you know of a platform that allows sharing of such notes/quick answers to questions?