It has nothing to do with being new here. They do not allow ANY pictures in sigs or html, only bb code. You would know that if you had taken the time to read the TOS like you checked that you had when you registered instead of just ignoring it. Try reading it.
The took pics and other crap out of Sigs to make the threads more readable instead of having them so bogged down with useless crap that so many forums put up with and I for one am glad they did. Some forums are all but impossible to follow due to all of nonsense people have in their sigs. It's the reason I don't like the EVGA Forums. Some of the people over there have sigs that fill up two screens. No one needs all of that crap in their sig. I can tell you this though. Deal with it and accept it as they are NOT going to change it no matter how much you whine about it.
And you still didn't get the sig line into your sig correctly unless you intentionally disabled the link to the thread.
Here's a general excerpt of the Sig Rules.
The TOS calls for signatures to not exceed 8 lines nor use text larger than size 3. For the sake of consistency, the length of signatures will be evaluated at the Fix View version of the site (1024x768). Each and every line of a signature counts toward the 8 line maximum including spaces, quote tags, etc. Size 3 text should be used only sparingly, and in most cases, size 1 and 2 text are most appropriate.
Reps should not be discussed in signatures. There is too fine of a line between begging for reps and legitimately reminding members about the rep system, so the line is drawn at not mentioning reps at all in signatures.
The TOS also prohibits the use of external links in signature. "External" refers to sites other than Overclock.net. This policy is consistent with other larger forums. Links to other sites are not permitted. Exception: As a temporary accommodation until we have better ways to share info that are directly related to our pursuits here, external links in signatures to sites like CPU-Z, Futuremark ORB, HWBot, Folding@Home stats or information, BOINC stats or infomation, etc, are acceptable. Steam Profile links are also acceptable. If you would like to link to something outside of the sites named here that is directly related to overclocking or our distributed computing projects, please contact a moderator in advance for permission.