Jess writes Wikipedia articles. Others do as well. It is not only that she engages girls with science; it is why she enthuses about female (STEM) scientists. Others do as well. It is not that only that her tweets engage us with for instance the #PhotoHour, that she wants us to read the (fabulous) books by Angela Saini, she also organises for schools to have Inferior in their library for girls to read and become a scientist as well.. What makes her special is that she engages people to be part of what she communicates so well.
Take me for instance, Jess is on Twitter and I read her daily new article. For the person she writes about I enrich the information on Wikidata and ensure that the "authority control" is set in the Wikipedia article. What I add is award information, authorities, employment and education info. I often add awards and depending on how interesting an award is to me I add other recipients as well.
It is not only me, there are many more people inspired by Jess who get involved, they read the books she champions, donate so that more girls read Inferior, follow her on Twitter, write articles and also get involved, are involved. It all happens because of the enthusiasm that Jess brings to us all. This enthusiasm, the involvement is what I so cherish. When the inevitable naysayers come along it dampens the positivity, the sense that we are making a difference.
When you want to know how important the women she writes about can be, consider Joy Lawn she tweets really effectively as well... It shows how women scientists really effectively communicate the relevance of science. It is vitally important for us to know about the science, the subjects they champion. At that it may be our Jess but actually, it is Dr Jess Wade, she is a scientists first, she promotes science and Wikipedia is a vehicle to get the message out.