Even ignoring privacy concerns, I don't think anybody would (or should) do it. It's impossible to prove that two accounts are not controlled by the same person. Even if we see two people on a video call it doesn't mean anything. You could ask someone - even your real son - to support your story but it's just not possible to actually prove it. So I don't think it's worth it for any DT member to get involved in this. They would be essentially vouching for something that they can't reliably verify.

So it really comes down to your own credibility. It looks like right now the opinions are kinda split on that. You don't seem to have any particular financial gain from this alleged sockpuppeting. If what you're saying is true you can probably earn you reputation back the hard way - by staying on the forum and contributing to it. If it's not true - I guess you'd just leave the forum or become a disgruntled troll