Whats the use of StackExchange forum or site, when we have to goto vendors or service providers to resolve our issues? If system admins or Vendors themselves want to ask question about system admin,it means this site is useless for them? its really stupid decision

What is the use of StackExchange forum or site, when we have to go to vendors or service providers to resolve our issues? If system admins or the vendors themselves want to ask a question about system admin, it means this site is useless for them?

It is a really stupid decision.