This is all irrelevant, ineffective posturing unless you take on enough moderators to deal with reports in a timely manner.
A 2 week ban doesn't matter to a troll if it takes you 10 days to deal with reports. Even 2 days is too long when they can be back on with a new account in 2 hours.
As it stands right now, your report systems, both in-game and on-site, are so overwhelmed that they are functionally irrelevant.
The only way you will ever make a dent in the amount of trolling going on is to get website reports handled consistently within 24 hours, and improve the ratio of in-game reports that are actually dealt with to 75%, instead of what is probably about 5% to 10% right now.