It seems there might be some confusion, as "Quorums" generally refers to a concept rather than a platform. Here’s a detailed comparison:

### Quora
**Description:** Quora is a question-and-answer platform where users can ask questions, provide answers, and engage in discussions on a variety of topics. It is a social media website that focuses on knowledge sharing.

**Key Features:**
- User-generated questions and answers.
- Upvoting and downvoting system to prioritize content.
- Personalized feeds based on user interests.
- Spaces (communities) for focused discussions.
- User profiles showcasing expertise and activity.

**Usage Scenarios:**
- Seeking expert opinions or crowdsourced answers.
- Sharing knowledge or expertise on various subjects.
- Networking with professionals and like-minded individuals.
- Exploring diverse viewpoints and discussions.

**Most Widely Used For:**
- Knowledge sharing.
- Q&A interactions.
- Community engagement on specific topics.

### Quorums
**Description:** "Quorums" typically refers to the minimum number of members required to be present at a meeting to make the proceedings of that meeting valid. This term is commonly used in the context of organizational, legislative, or governance meetings.

**Key Features:**
- Ensures legitimacy and representativeness of meetings.
- Defined by bylaws or regulations of an organization.
- Critical in decision-making processes within organizations or legislative bodies.

**Usage Scenarios:**
- Organizational meetings (e.g., board meetings, general assemblies).
- Legislative sessions (e.g., parliament, councils).
- Any formal gathering requiring a minimum attendance for decisions to be binding.

**Most Widely Used For:**
- Ensuring valid and representative decision-making in organizations.
- Compliance with governance rules and regulations.

### In Summary:
- **Quora** is a widely used platform for online Q&A and community discussions, suitable for individual knowledge sharing and crowdsourced information.
- **Quorums** is a concept used in organizational and legislative contexts to ensure that meetings and decisions are legitimate and representative.

**When to Use Each:**
- **Quora:** When seeking information, sharing knowledge, or engaging in discussions on a wide range of topics with a global online community.
- **Quorums:** When organizing or participating in formal meetings within an organization or legislative body to ensure decisions are valid and representative.

Quora, as a web platform, is much more widely used by the general public for knowledge sharing and community interaction. Quorums, being a procedural concept, is essential in specific formal and organizational contexts to ensure proper governance and decision-making.