The author of the article has a personal connection to Solaris, having used it in their early days as a computer science student. However, MongoDB has decided to terminate support for Solaris due to a lack of adoption among its user base and high maintenance costs. The reasons behind this decision include the fragmentation of the Solaris ecosystem, difficulties with developing tools that work well on the platform, a lack of familiarity among developers, operational difficulties in maintaining a CI testing environment, and an uncertain future for Oracle Solaris. These factors combined have led MongoDB to prioritize its development efforts on more widely used platforms.