Hello EizEddin,
Glad to hear you decided to contribute to Moodle. Once you comment on tracker issue you automatically start "watching" it. Any future comments or modifications of this issue will be emailed to you.
Regarding the peer review waiting time - we are a little flat out in HQ with upcoming 3.2 release and surprisingly big amount of community bug fixes so the waiting time may be bigger than usual. We normally try to start reviewing within three weeks.