Adding nuance to this feature is important so that we aren't limited to just threads for our ability to reply to message: https://feedback.clickup.com/chat-feedback/p/send-threaded-message-to-chat-and-thread
90% of the time all I want to do is quickly reply to a message for the sake of context. There is no need 90% of the time to create an entire thread around a reply, just a simple yes/no answer to a question and showing the connection of that yes/no to the original ask is all that is needed.
Look at Discord, NOT slack as a point of reference for Replies and Threads.
Please please please do not emulate Slacks' terrible implementation as if it was some sort of standard to follow, Discord is infinitely more useable and better of an experience