the gas limit is what makes it look like a mistake. there have been cases like this before with bitcoin caused by badly coded wallet software or mixing software. what makes you think it was intentional?
some more discussion here: https://bitcointalk.org/index.php?topic=5111978.0;all
some more discussion here: https://bitcointalk.org/index.php?topic=5111978.0;all
It's good that you bought up the thread.
Look at the timeline of the abnormal transactions again.
1. What kind of stupid person would make 5 mistakes one after the other?
2. If it's an error from a badly coded wallet software then we would have far more similar transaction than just 5, I looked at the address and it seems to be sending out so many transactions.
Yup, that's why I think it's intention. Ether gas limit is 21000 by default