No one is disputing that Twitter is popular. Likes and retweets will not save the Internet Archive anymore than thoughts and prayers. People who are not willing to click a link will not be willing to make a donation.
For example, here's the thread author quote-tweeting the beginning of his thread, which allows him to prepend both a tl;dr and a link to "archive.org/donate"
https://twitter.com/textfiles/status/1204431184069058560
If he wrote a blog post that includes the fundraising URL (e.g. at the top and the bottom) and tweeted a link to that blog post, you believe that that call to action would be more visible and obvious to the average reader?