Edit button disappears

I see I have the ability to edit my own posts (as is customary in most forums). But I see I see now in a topic I created 11 days ago https://discourse.haproxy.org/t/challenges-proxying-to-rds-gateway/7761, the edit button is gone from my posts. Is it because the topic is over a certain age, or is it because I marked it as answered, or some other reason?

Yes, it’s about the age of the post.

The threshold is 1 day for Trust Level 0 and 1 users (new users), and 30 days for Trust Level 2 users. I’ve bumped you to Trust Level 2 so you can edit posts within 30 days now.