@galads, who is responsible for adding such details to the manual?

Soft Mandatory is hard to describe.
Can you help collaborating with some text? Just as a starter.
Then I can elaborate more and add it later to the manual.

@gabrieljenik, I have neither implemented this feature nor am I using it so far. I think @f_funke is the person to talk to?!

Soft-Mandatory: Warn respondents if a question is left unanswered, but let respondents continue without answering.
Mandatory: Require a response to an unanswered question to continue the survey.

E.g. Qualtrics:
Force response: Requires the respondent answer the question before they can continue the survey.

Request response: Alerts the respondent about any unanswered questions, but allows the respondent to continue the survey without answering if they choose.

Added in the manual a description of Soft option in the mandatory attribute

https://manual.limesurvey.org/QS:Mandatory

Is there a way to globally disable soft-mandatory questions?

@ritapas, on the left "Settings" part of a survey you can find the "List questions". That allows a mass editing of questions to e.g. remove the mandatory flag from a set of selected questions.

@mazi yes, sure, thank you, but I wanted to disable them on a server basis