Lowballing is fine as long as I am the one doing the lowballing. I recall last year I bought a domain for $10 and sold it for $7000.
If people dont post a price then expect a lowball. Of course you do get some arrogant twats that lowball even when a price is posted, thinking they are doing you a favor by taking the domains off you for a low price.
Then you have the ones who PM you about some obscure name for $10,000 only because you showed an interest in another domain previously that was in there mind similar, now that is spamming and should carry a penalty of death by lethal flaming.
But hey I love low balling, it stops people posting MAKE ME AN OFFER, in a hope that someone will pay 100 times the value.
Oh wait I do that.. ah well.
Gotta Love domaining.