These were my sentiments too. Looking for paid work would have been the appropriate step for the OP simply because of the details he claimed in his bio. To offer his services for free under the rationale of trying to increase experience and connections (so as to learn more) seems as though he is selling himself extremely short (on the basis of what he claims in his bio).
He did not of course present any evidence he can do any of the works that he claimed therefore there is no way to verify his claims and that does not help his case either. Having said that he now claims to have found a job through the forum but being highly sceptical by nature I am not totally convinced by what is being claimed by the OP. The obvious thought that comes to mind is the thread was created with the intent to post a few months later to
promote a project that is/was already his and was complete or near completion.
Maybe the reality is something else but that is what my instinct is telling me.
If everything from your bio that you mentioned in your OP is true and you can prove it, then I don't see why you would be looking for free work and not get paid for the services you can render. You claim to have been a community manager for 4 different projects. You have several years of experience managing social media communities. You can write articles, PRs, technical guides, etc. If I were you, I would look for paid work, freelancing opportunities, etc. That is, of course, if you can do everything you claim you can and you have the needed quality.