Bob Larter wrote:

msg wrote:

Michael A. Terrell wrote:

snip

Dimbulb is replying to himself again, in the hope no one will notice
what an idiot he is.

If you look at the headers for both they will have the same IP
address:

NNTP-Posting-Host: 72.197.142.200


snip

I have no knowledge of these particular posters or their ISPs but I
caution
readers not to assume that identical NNTP-Posting-Host addresses
automatically
mean the same user; some small ISPs assign RFC 1918 addresses to clients
and have a small block of public IPs exposed to the 'Net.


That isn't an RFC-1918 address. It belongs to Cox Communications, Inc.

Indeed, and I don't expect a large operator like Cox to do it, but some ISPs
NAT their clients with RFC-1918 addresses, all of which translate to a single
public IP, ergo, many NNTP users may all originate from a single IP.

Michael