Basically, it boils down to this:
The preponderance of evidence is that most trending calling posts on Tumblr alleging sexual misconduct by trans women are fabricated by the same relatively small group of bad-faith actors, and that these bullshit callout posts outnumber the legit ones by a considerable margin.
If you think you can tell the legit callout posts and the bullshit ones apart just by looking at them, you're almost certainly wrong.
Like most mechanisms of social control which are based on ostracism, callout posts tend to be most effective against people who are already in a position of vulnerability, and concomitantly, tend to have no significant long-term effect when deployed against people in positions of power or authority.
What all this adds up to is that even leaving the moral dimension of the act aside, from a purely pragmatic perspective, reblogging that callout post accusing a random trans woman you've never heard of of being a dogfucker or what-have-you is an action which, in a worst-case scenario, will contribute to ruining an innocent person's life, and in a best-case scenario, is likely to accomplish nothing whatsoever.
Folks often justify reblogging callout posts without performing due diligence under the rubric of "better safe than sorry", but any realistic assessment of the likely outcomes will tell you that the true "better safe than sorry" course of action is to keep your damn mouth shut!
snowghoul
s-u-f-j-a-n-s-t-e-v-e-n-s
discoholicmusic
turnnoffyourmind
yousharknotpass
