I moderate a 2500 subscribers-large and 1 month old community, as its single mod. Up to this date I had literally two reports - and in both cases the issue could be solved peacefully. So don’t worry about the amount of mod work, Lemmy users are surprisingly well-behaved.

What aspects do I need to consider before doing this?

• Do you feel emotionally invested in the topic in the long run (say, six months for now)?
• Do you have the free time to check your community multiple times a day (a quick peek is fine), and to feed it some periodic content at the start?
• Are you decent enough handling people? (You don’t need to be specially good at that, just “normal good” is enough.)
• Do you have a good reading comprehension, and enough knowledge of the topic to follow a discussion about it?

If “yes” for all of those I’d seriously consider creating the community. Specially if you know that some people here would post content in it.

Also give this post a check, it’s some advice for newbie moderators.