Joe Biden pardons all veterans convicted and discharged over their sexuality or gender identity

That question was addressed in the article.

the issue of back pay remains complex and largely unaddressed in the immediate details provided by the officials. They did not specify commitments regarding back pay for the time veterans were unjustly separated from service, which suggests that further clarifications from the Department of Defense might be necessary.

/s or right wing troll? It's hard to tell the difference sometimes

Better than not doing it at all

The ultimate end-goal of a president’s first term is to be elected for a second term, and we Americans have very short attention spans. Stuff like this that seems like it should obviously have been done as soon as someone with the will to change it comes into power is more politically beneficial to do in an election year. It’s a shit system, certainly, but even the (relatively speaking) “good politicians” have to operate within it.

They can't do everything everywhere all at once.