Hello @jokingarbiter
Thank you for contacting the Instructure Community. It depends on the discussion settings - the teacher can have it set up if you have to post initially before seeing others or not. Either way, if you have posted and others can reply to your post, It is likely your internet browser and we recommend clearing the cache and cookies or trying another browser.
In Chrome
On your computer, open Chrome.
At the top right, click the three dots
Click settings
On the left, choose Privacy and Security
Then, clear browsing data
At the top, choose a time range. To delete everything, select All time. I suggest at least 4 weeks
Next to "Cookies and other site data" and "Cached images and files," check the boxes.
Click Clear data.