I've seen moderators and Baron say at least once here at the forum that if someone disappears without any explanation...something similar to what you just said.
Yet, I prefer to think they may be taking a break from the forum, busy doing something else that consumes their time & energy, or severe illness/hospitalization. Thus, it has nothing to do with them "blowing up a trading account".
Worst case scenario...death although we all know that everybody here at ET are immortals.
By the way, there are a few other members that disappear from the forum without explanation and then suddenly show up to post a few messages before disappearing again...they do that several times each year.
People around here getting older and it is natural to see more health problems with older members than conspiracy theories.
@KCalhoun@Magna and about a dozen or so active members that have quietly disappeared in the past year.
Other theories...Alien (UFO) Abductions. We do have enough conspiracy theorists here at the forum to start a good thread about members disappearing: UFOs, CIA, BlackOps, Russian or Chinese Trolls, Dropped Dead from Vaccination, Lit themself on fire in protest, Ghosts that were not here in the physical...