I can understand your frustration expressed in such entertaining way
But this particular bug belongs to an ancient version of SMF (1.1.8 ), which wasn’t updated by Comodo since 2006 as far as I understand, when current version is 2.0.5
I am not going to investigate whether this bug was fixed since. Neither would I argue about the choice of the forum Software chosen by Comodo.
The main thing is that mysterious disappearing/loss of users’ messages before submitting is very known & common issue, which can be triggered by different & numerous technical errors, not related to the one we are having here (anti-spam war)
Copying into clipboard somehow may help but cannot be considered as sufficient (I am absolutely sure… I tried in the past).
It’s much better and reliable when using one of (or a combination) of the following methods:
create your long helpful post with any editor of your choice. Save the message; copy/paste it into forum input box & send;
It all boils down to whether you let your browser reload a page when navigating though page history. When reloading is disabled you will find back the text you typed.
It’s how I have Opera browser set and it serves me well. Before Opera 9 Opera was set by default to not reload when navigating through history. Since Opera 9 you will have go into Opera’s underwater screen to get the not reload setting. I don’t think the Chromium based Opera offers this function at the moment (I hope it will though). IE also offers this option but I never bothered to test if it would work.