well thats why he asked the group for their (hopefully but clearly not constructive) thoughts and didnt ask the embassy directly. so i guess he did do his proper reseach...... the self righteousness of some people
you went wrong at 'i heard'. read up on it yourself from a reliable official site as to what constitutes a thai tax resident. otherwise you deserve to get it wrong. why leave such critical information to hearsay or other people on the net youve never met??