Should it be possible for users that do not have the rep to comment to
reply to comments regarding their trivial answer?
Should we allow users to comment in a place they are currently not allowed to comment, when that "place" is a converted answer they should not have posted in the first place because it should have been a comment?
I posted a trivial answer that I knew would be converted to a comment
I tried to post another trivial answer with a link but it did not
convert to a comment
Why are you intentionally using things incorrectly?
It can be frustrating not being able to comment at first, but there are very good reasons it's like this.
And consider that millions of users of Stack Overflow had to earn 50 rep to be able to comment.
Surely you are no different to those other users, or deserve something which those other users did not?
We all had to go through the same scenario of not being able to comment, do what everyone else did - earn 50 rep :)
so I just improved upon the answer
This is simply what you should have done in the first place, instead of trying to work around the system.
Answer if you can.
If you need to comment first, but do not have 50 rep, then wait until someone else has commented and obtained any necessary info, and then you can answer.
Or, answer questions which you do not need to comment on and earn 50 rep.
50 rep is simply not hard to earn.
You only need an upvote or two on a question or two, and some edit suggestions (which are not hard to find), and a few answer upvotes.
In fact, before this answer/comment scenario you had "yesterday" you already had 14 rep, so only needed to earn another 36 rep.
In my case, if I did not find/have another answer I would not have
been able to communicate with the OP and person who replied to my
trivial answer comment.
You posted an answer knowing it should be a comment and knowing it would be converted, so there is nothing that requires additional options, and there is no legitimate scenario to accommodate.
You are essentially asking if we can have a new function to assist us when we bend the rules and bypass systems. Which really wouldn't be a good thing.
Rules and procedures (etc.) are there to keep order, not for us to find ways around them and then request new functionality to cater for it.
Related reading regarding the need for 50 rep to comment:
Other useful information regarding rep required as a new user, etc.: