When can I change signature?
Please see it in the rules of the Bounty Campaign:
● Keep the signature (as well as the avatar and the personal text if you picked them as well) till the end of campaign. Removing signature in the course of campaign will make you disqualified. Removing avatar or a personal text in the course of campaign will make you disqualified. We will check your messages on a regular basis to make sure you are using our signature (and avatar and personal text, if applicable) at all times.
● We recommend keeping your signature till the final spreadsheet gets updated with your final post count (allow at least one week to count posts).
Removing signature before post count may very well lead to your disqualification.
You can find again the full list of the rules on the first page of this thread:
https://bitcointalk.org/index.php?topic=2059229.0
