If someone’s posts don’t bother you, but their signature really pisses you off, can you report them?
You can report any damn thing you like. The mods may or may not act on it, depending on whether it violates any rules, the phase of the moon, what kind of mood the responding mod happens to be in, political affiliations of reporter/reportee, bribes, outcome of recent sporting events, and a saving throw on 1d20.
You might find the FAQ from the ATMB forum useful.
Why would you ever want to do that? You don’t actually have to read every letter and word typed on this board.
Do I get a modifier for WIS or CHR on that?
You? No.
I’ve been Pitted for my signature before, so I don’t see why not.
Kind of a control freak, are you? Look away.
Or use the ignore feature, that’'s what it’s for.
Depends on whether the DM/Mod has been properly bribed with food, drink, or other intoxicants.
Bah, you called me a name! I’m reporting your ass. 
Yes, I could use the Ignore thingie. I’ve done it before. It can be therapeutic.
(For the record, that was a joke. I did not actually report you.)
Reported.
True. You most certainly can.
The answer, EmilyG, is that if you think their signature violates a rule or guideline of the board (including the “don’t be a jerk” rule), then we’d encourage you to report it. If it pisses you off because it contains egregious grammar violations or you disagree with an opinion it states, then it’s probably better to either ignore it or start a Pit thread.
[quote=“Gary “Wombat” Robson, post:13, topic:666750”]
True. You most certainly can.
The answer, EmilyG, is that if you think their signature violates a rule or guideline of the board (including the “don’t be a jerk” rule), then we’d encourage you to report it. If it pisses you off because it contains egregious grammar violations or you disagree with an opinion it states, then it’s probably better to either ignore it or start a Pit thread.
[/QUOTE]
Reported.
I should have seen that coming.
I’m appalled at how few people in this thread are turning their signature on for their posts here.
Wait. What?
I had, at one time, a quote from Pterry as my sig (edited):
There are, it has been said, two types of people in the world. There are those who say: this glass is half full. And then there are those who say: this glass is half empty. The world belongs, however, to those who can look at the glass and say: What’s up with this glass? Excuse me? This is my glass? I don’t think so. My glass was full! And it was a bigger glass!
A person who shall remain nameless took exception to this, thinking it was the height of Merkin arrogance and presumption.
We have since kissed (no tongue!) and made up.
He must have me on Ignore. 
Rules for signatures.
http://boards.straightdope.com/sdmb/showthread.php?p=7697069#post7697069
Does it break one of the rules here?
Note, for instance, that “Regards, Shodan” is specifically permitted, although it annoys some people.