I chose to post that as an answer rather than as an "update" on the original question for mainly two reasons :
- First, it is an (incomplete) answer which I think will be of help in solving the initial problem. So it can be thought of similarly as when users write answers which are "too long to be a comment" (I don't know what is the consensus of the community on that, though).
- Second, the original question was already rather long, and adding my new attempt to the question's body would make the post even longer and discourage most users from reading through it, which is the opposite of what I want. It also makes the exposition clearer and the question less "noisy" (in case my attempt is misguided).
Either way, I came here to ask : What is the best way to add a "significant" update to a question I asked ? ("significant" here means "long and possibly a good lead to an answer") Edit the question to add the update regardless of its length ? Post it as answer ? Ask a separate question about it ? Something else ?
Thanks in advance for your replies !