Posting profile comment restrictions?

[Ach]

Hey I'm making my first bot so I'm trying to experiment with a bunch of simple features.  But I cannot seem to get posting to steam profile comments working.

 

I can post a comment on the same account using the browser, but if I do it with the bot I get the error 'The settings on that account do not allow you to add comments.'

 

I think I have the same issue as this person: https://github.com/DoctorMcKay/node-steamcommunity/issues/217

 

So I'm wondering if I have tripped it, and what I can do to not trip it? I'm using my own personal account to test with and I'm trying to post comments in response to a message so my account will have been logged in for a while, it's not like I'm spamming either it's just 1 comment so I am out of ideas.