Till now MindStick doesn't provide such facilities of having a chat or conversations with any other users, MindStick is a professional platform and things goes professionally here.
So if incase you need to Contact any user then the user must have upgraded his/her profile, then after he/she can update their contact details. MindStick takes excellent care of the privacy of their users, so MindStick doesn't reveal e-mails, contact, and personal details of any user. MindStick allows numerous options and details to submit when you make your profile, but all the details are not public for everyone by default, if you need you can make it public later by Upgrading your account.
Now when you need to show-up your personal and contact information so that users contact you:
You need to upgrade your account so that you can save changes and make your personal details public.
Upgradation your profile doesn't cost you enough, just a nominal amount and you are upgraded.
After upgradation you must uncheck the privacy section from your profile so that personal and contact info is public now.
When you complete your upgradation, you have the benefit to public your details, so that one visiting your profile can easily contact you.