Induction is not proof :-) I'm also convinced, but primarily by Turing's argument ad politeness: "Instead of arguing continually over this point it is usual to have the polite convention that everyone thinks".[1]

I haven't really found a compelling rational argument to fully reject solipsism.

Though I agree that looking for yourself in a perfect simulation is a clever hack. :-)

[1] https://books.google.com/books?id=7pFHBAAAQBAJ&lpg=PT51&ots=...