Twitter is releasing a paid subscription feature called Twitter Blue.
This feature will allow those who pay for it to preview tweets before they are sent, create folders within their bookmarks, and activate reader mode which will make reading threads a lot easier.
Will I purchase this feature?
No, I highly doubt I will purchase this feature because I do not use Twitter often and have not needed the ability to preview tweets or save them in bookmarks. The threads readability improvement is great, but it is not worth paying a subscription fee to me.
However, if you are on Twitter often and you frequently tweet on the fly, this service may be great for you. If anyone purchases it, let me know how you like it!