DESERTBOB aka OLDECHRYSLER (not its real name) is a troll.
It regularly frequents at least twenty news groups,
including many rabid/sex/racist groups.
Normally, it starts off with reasonable, even witty lines,
but rapidly drifts into lies, abuse and stupidity.
Check its details at Google Groups at this URLs- it has recently been
"branded" as a troll with its previous username, and has just created a

new Google Groups name to post here as "OldeChrysler"- read its post
history at these links for an eye-opening expose'- if you look at the
email addresses for each of its names, epiphany will strike:

http://groups.google.com/groups/prof...n7nbF1Te82ZIng

http://groups.google.com/groups/prof...fw84ImzlcMxDpg

To see this troll's true nature, you can see its recent posts as
"DeserTBob" on alt.collecting.8track tapes, where is has clogged the
group with useless posts- effectively ruining the newsgroup, URL below:

http://groups.google.com/group/alt.c....8-track-tapes

It is a sad creature, deserving of pity, not anger.
Any direct response simply feeds it,
but it will go away if you ignore it.