...
I just checked all topics with an ID <34 and none of them contains such information. So it appears that, in fact, this was the first public transfer-by-IP-address transaction, at least on this forum. I haven't checked the old mailing list or forum on sourceforge, so I can't guarantee for it, though.
Indeed. I can't find a public example of a transaction to an IP address prior to this one. I'm told that the Bitcoin sourceforge mailing lists (including the private bitcoin-security list) does not appear to have an example of an IP transaction before this one either.
I'm assuming that the 'Satoshi to Hal' transaction was sent to a Bitcoin address and that all other IP transactions were to private ranges. The posts show that others were aware of how IP sending worked in practice, the question being - did anyone else actually test it ? Base networking protocols are often assumed to be working correctly when the layers above them are functioning.
It will be easy enough to find the transactions on the blockchain i.e. 2 x 0.01 BTC transactions on the same date / time as your post.