Online learning platforms have become increasingly popular over the past few years due to the advancements in technology and the increasing need for flexibility in education. This surge in popularity has led to a wealth of online learning platforms that offer comprehensive information and tutorials on a variety of skills. However, to ensure the effectiveness of these platforms and continuous improvement, it is crucial to leverage success metrics.

Measuring success is not just about analyzing passing rates or completion rates, it involves analyzing multiple components such as user engagement, completion rates, community interaction, content quality, and accessibility. These are essential metrics that help guide the continuous improvement of online learning platforms.

User engagement is a critical metric to measure the success of online learning platforms. It indicates whether users are actively engaging with the content or passively consuming it. Engaged users are more likely to learn and retain information effectively. Metrics like time spent on the platform, pages viewed per visit, and frequency of visits can provide valuable insights into user engagement.

Another important success metric is the course completion rates. High completion rates indicate that users find the content interesting and valuable enough to complete. A low completion rate, however, might suggest that the content is not engaging or too difficult, which calls for content revision or structure rethinking.

The level of community interactions features prominently as a significant metric of success. It could be in the form of discussions, forum posts, or collaborations. High levels of community interactions suggest that users are comfortable and engaged with the learning environment. Monitoring the community interaction helps online platforms in understanding the users' interests, questions, or difficulties related to the course content, hence making necessary improvements.

The quality of the content presented on the online platform significantly impacts the user's learning experience. User feedback is an excellent metric for gauging content quality. Frequent content review and updates based on user feedback help in maintaining high-quality content on the learning platform.

For an online learning platform to be successful, it needs to be accessible to everyone. Accessibility metrics involve the evaluation of the platform in terms of compatibility with different devices, easy navigation through the website, and the availability of content in various formats (videos, texts, infographics, etc.). Platforms should ensure they meet accessibility standards to reach a diverse user base.

By leveraging these success metrics, online learning platforms can continually improve their offerings and maximize their effectiveness. For instance, analyzing user engagement and completion rate data helps designers and content creators fine-tune their courses to better suit user preferences and needs. Community interaction data can indicate what additional resources or support systems need to be put in place to facilitate a more interactive and fulfilling learning environment.

The robust analysis of content quality can inspire necessary upgrades that align better with user expectations, while accessibility data can ensure any barriers to learning are removed, making the platform more inclusive. Importantly, the articulation of these metrics should be accompanied by the establishment of clear goals, benchmark comparisons, and the development of strategies to reach them. With well-defined metrics, platforms can chart a course towards continuous improvement, delivering a potent online learning experience that aligns with users evolving requirements.

In conclusion, leveraging these success metrics goes beyond numbers and statistics. It's a tool and a roadmap towards continuous improvement, enabling online learning platforms to assess their effectiveness, identify areas for improvement, and implement targeted strategies. It ensures platforms remain current, effective, and aligned with users' ever-changing learning needs, a vital element in the progressively competitive and dynamic world of online learning.