I've seen these allegations on here too, if someone is going to to make such a claim than it's their duty to disclose the nature and sources of the claims for the sake of our Catholic parents and their children 

Another charlatan in search of a bishop's hat. A dangerous charlatan because two or three times on this very forum people have made allegations against by warning parents to keep their children away from him. If the persons who have knowledge of him acting inappropriately only give this whispered warning and fail to speak out loudly about who he is they should be ashamed.
Somebody on this forum knows about him but hides in the shadows thereby allowing children to possibly be in danger.
Pretending to be a sedevacantist/independent priest is the perfect place for sɛҳuąƖ predators to hide.

We must shout this from the rooftop. These men seek to devour our children's souls.

Why wouldn't he go into detail? Why is everyone being so vague about it? How are we to know it isn't slander? That's all sedevacantist do is slander each other. What better way to thin the competition than by casting doubt about them with children especially little boys. You can't even find any thing not even a police report, of there's always the possibility of someone not wanting to talk but still unless someone witnessed something or was told something by a "victim" themselves than this is slander

The bishop who told me wasn't a sede bishop at the time he told me, but he is one now.  At the time he told me about Fr. Miller, he was an ex-SSPX independent priest. 
If wasn't as though the priest refused to go into detail.  I have no details because I didn't ask for any.  I trusted this priest, and still do, so there was no need for me to ask for more details.
Whether or not I have details, I am always grateful when a priest I am associated with cautions me about another priest.  I would rather be safe than sorry. 

I don’t know Fr. Miller at all, but the anonymous poster is the real scandal here. If you have real proof then expose him, if not, keep your backbiting mouth shut. Remember, you will be held accountable for this if these accusations aren’t true or are exaggerated.

I don’t know Fr. Miller at all, but the anonymous poster is the real scandal here. If you have real proof then expose him, if not, keep your backbiting mouth shut. Remember, you will be held accountable for this if these accusations aren’t true or are exaggerated.

In this day when perverse priests seem to run rampant in independent circles, it seems charitable to warn people.  
I assume a religious would be careful not to say anything against another religious unless he had pretty concrete proof, for he/she will be judged more harshly than laity.
I understand why some refuse to attach their name to their warnings.  Perhaps they fear being sued as Mr. Pfeiffer was sued by Pablo the Mexican who is with Fr. Pfeiffer (no relation) and runs OLMC, using OLMC  donations, over his statements (all of which were already online) regarding his warnings to the Faithful of Fr. Marshall Roberts (Fr. Mary of the Pillar) who is working with Fr. Pfeiffer and is stationed in either Portales NM (last I heard) or Arizona (possibly both).  Even if the case is thrown out of court, it is still quite costly and time consuming. 

Silence breeds consent. Victims remain anonymous for their safety.

And unrepentant backbiters and talebearers go to hell. A suggestion, don’t spread anonymous and unsupported rumors unless you have proof to back it up.