I don't have any "data" but I will say that probably 80%-90% of the deals we are involved in are asking for a 36 month term. I will also say that where leasing used to be predominate, now leasing is required in less than half of the placements.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .