Ms. Reade may well be completely full of shit.
The problem is that many of the people who screamed "BELIEVE WOMEN" when it came to Dr. Ford's allegations against then-Judge Kavanaugh are now calling into question Ms. Reade's allegations against former Vice President Biden, and did so almost immediately, before any serious vetting of Ms. Reade's claims had occurred.
Furthermore, a major group set up to help victims of sexual harassment with regards to #MeToo declined to give legal aid to Ms. Reade in her case, with the stated reason not being that her accusations were baseless (which, again, they may well be) but that doing so would put their tax status in legal jeopardy since her claims were against a Presidential candidate, which is a decidedly more dubious rationale.
So even if Ms. Reade is lying through her teeth about these claims, the way in which the people who were adamant that Dr. Ford be believed were immediately apathetic, if not hostile, to Ms. Reade sure as hell makes it look like they were just playing partisan games with #MeToo and "BELIEVE WOMEN" and didn't actually mean it.
If your standard changes depending on the situation--if you believe those women who accuse men you don't like but disbelieve women who accuse men you do like, for instance--you don't actually have a standard.
EDIT: The same can be said of people who point to the accusations of sexual assault against Donald Trump while ignoring those against Bill Clinton... and vice versa, of course.