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In the General/Chat forum, on a thread titled Could Tiny Blood Clots Cause Long COVID’s Puzzling Symptoms?, Republican Wildcat wrote:
The time travelling vaccine strikes yet again! Causing Long COVID in people who never took it and long before the vaccine existed!
Is there nothing this vaccine isn’t capable of?

First sentence of the article says she was triple vaxxed. Try to pretend you read the article before distorting the facts.

You are correct that Hawthorne is tripled vaxxed, however, the study being referred to in the article was done early in the pandemic by Kell and Pretorius:

When the pandemic hit in 2020, Kell and Pretorius applied their methods almost immediately to people who had been infected with SARS-CoV-2. “We thought to look at clotting in COVID, because that is what we do,” Pretorius says. Their assay uses a special dye that fluoresces when it binds to amyloid proteins, including misfolded fibrin. Researchers can then visualize the glow under a microscope. The team compared plasma samples from 13 healthy volunteers, 15 people with COVID-19, 10 people with diabetes and 11 people with long COVID3. For both long COVID and acute COVID-19, Pretorius says, the clotting “was much more than we have previously found in diabetes or any other inflammatory disease”. In another study4, they looked at the blood of 80 people with long COVID and found micro-clots in all of the samples.

So far, Pretorius, Kell and their colleagues are the only group that has published results on micro-clots in people with long COVID.

Kell and Pretorius have received a grant to study whether this same clotting occurs with Covid patients who have been vaccinated:

Where these micro-clots come from isn’t entirely clear. But Pretorius and Kell think that the spike protein, which SARS-CoV-2 uses to enter cells, might be the trigger in people with long COVID. When they added the spike protein to plasma from healthy volunteers in the laboratory, that alone was enough to prompt formation of these abnormal clots6.

If the spike protein is the trigger for abnormal clots, that raises the question of whether COVID-19 vaccines, which contain the spike or instructions for making it, can induce them as well. There’s currently no direct evidence implicating spike from vaccines in forming clots, but Pretorius and Kell have received a grant from the South African Medical Research Council to study the issue. (Rare clotting events associated with the Oxford–AstraZeneca vaccine are thought to happen through a different mechanism (Nature 596, 479–481; 2021).)

It is good news that researchers are beginning to look into long Covid and what causes it and give relief to those suffering from it.