Allow me to be the first: that was stupid! But what's more stupid, is waiting 2 years before explaining it.

I hope this is because of your English: asked > offered!

Nothing is more reputed than a signed message: if you're going to do stupid things, you can sign a message upfront to prove later on that it was intentional.

So, post this somewhere in Archival:
Don't edit this post anymore.

Then, later, you can prove your intentions by posting this:
Signed by 1LoyceVGjMmUj6Na79M9Ju8N52KXkbKMQE (staked here).
I forgot the words "I'm going to say", but don't want to sign again.
Disclaimer: I'm not theymos!

Of course, if you start posting signatures without every posting what they're for, you could be building up a pile of shady shit and selectively deciding what to use. Don't go down that road.