by Mary Evans.
Hi,
To answer your questions:
1. Well that depends on what your knowledge of PHP, AJAX, JavaScript, SQL, HTML, CSS are. There are some very easy bugs mainly to do with Moodle Themes. Like adding some padding to an element or correcting a typo in a stylesheet
2. Choosing a different username in Moodle & Moodle Tracker will not affect anything just as long as your real name is the same in both.
3. To fix any bugs in Moodle Tracker you need to learn how to use GIT which you can do if you read GIT for developers. The 'Assignee' is the person who is allocated the bug to fix by default. This is done automatically when a new tracker issue is created.
Mary