I was looking at a question a bit earlier (Appropriate way to handle timezone for embedded/IoT devices to be more specific) and wanted to ask the OP a question to get better insight into their thought process but was locked out from commenting due to lack of reputation points. The question in this case was "Would having more precise time information actually be useful in this case?" to probe the asker into thinking if the hassle of finding workarounds was worth having that information in the first place.
I understand the need for such measures when commenting on answers to questions, but would it not make sense to allow anyone who is able to answer the question to ask questions to the OP to better answer the said question?
To answer the duplicate claim this question is different in asking specifically about comments on the question rather than in general, as to reduce the amount of spam as the current system does, but also allow newer members to ask clarifying questions to the question poster to be better able to answer their question in the first place.
tl;dr Should commenting on the question be permitted to all, even without being permitted to comment on answers?