Earlier quoted context omitted.
I think only the Solver type from the article acts as a force multiplier. Have a strange bug that you have been trying and failing to solve for a few days? They will probably fix that in a few hours and unblock you immediately.
Solvers don't fix the problem. They tell you how to fix the problem. :) That's how they make sure the problem stays fixed.
If it's not that urgent, they might guide others in a more asynchronous fashion on how to get to a fix