Explanation
The study exhibited the following results:

Employers are using various techniques on social media to discriminate against a particular group and encourage certain other groups. The companies had opted for Community C members over Community M members for recruitment.
The companies had prioritized a certain gender group for recruitment, consequently, leading to inequality and projecting the unfairness in the company's values
Verified Answer
University CM has worked upon the intentional discrimination tactics used by Company F to target youth for recruitment and the ways employers are using social technologies in managing unfair practices.

The study showcases disparate impacts as:

Youngsters were asked to specify their genders in the job application.
Community-related information was being collected through job forms.

2
Explanation
The aspects that can be ignored while using career sites are as follows:

A user need not upload a picture that may reveal their color, leading to bias by an employer in the recruitment.
An interviewee may neglect the salary details section as it may create bias in being selected for a new job because companies may choose employees with lesser previous salaries so that they can negotiate with the new employees to join for lesser pay.
The aspects that may not be ignored while using career sites are as follows:

The mention of the user's country of origin can assist the employer in opting for new employees based on their location. This is a mandate as it saves time for the employer as they would contact only those employees who are located as per the company's requirement.
The gender section detail is a must so that no party is misguided regarding the gender of the employee.
The birth date is a mandate as it reveals the age of an employee, which provides enables the companies to choose workforce as per the age requirement.
Sample Response
The following attributes can be ignored on career sites:

Uploading the user's photo in the profile
Mentioning salary related details in the profile
The following attributes are not ignored on career sites:

Nationality of the user
Gender of the user
Date of birth of the user