Is it wrong to publicly say that someone fucks kids without proof?

Very, very wrong. Im sorry about that, hopefully no one makes any more accusations like that.

No, if you seriously believe they do it.
Yes, if you're just trying to troll or insult someone.

That's just slander.

"Pope Hadrian I says (Cap. lii): 'He that fails to prove his accusation, must himself suffer the punishment which his accusation inferred.'

As stated above [2932] (A [2]), in a case, where the procedure is by way of accusation, the accuser holds the position of a party aiming at the punishment of the accused. Now the duty of the judge is to establish the equality of justice between them: and the equality of justice requires that a man should himself suffer whatever harm he has intended to be inflicted on another, according to Ex. 21:24, 'Eye for eye, tooth for tooth.' Consequently it is just that he who by accusing a man has put him in danger of being punished severely, should himself suffer a like punishment."

"Nothing but mortal sin deserves the eternal punishment of hell. Now railing or reviling deserves the punishment of hell, according to Mat. 5:22, 'Whosoever shall say to his brother... Thou fool, shall be in danger of hell fire.' Therefore railing or reviling is a mortal sin.

As stated above [2947] (A [1]), words are injurious to other persons, not as sounds, but as signs, and this signification depends on the speaker's inward intention. Hence, in sins of word, it seems that we ought to consider with what intention the words are uttered. Since then railing or reviling essentially denotes a dishonoring, if the intention of the utterer is to dishonor the other man, this is properly and essentially to give utterance to railing or reviling: and this is a mortal sin no less than theft or robbery, since a man loves his honor no less than his possessions. If, on the other hand, a man says to another a railing or reviling word, yet with the intention, not of dishonoring him, but rather perhaps of correcting him or with some like purpose, he utters a railing or reviling not formally and essentially, but accidentally and materially, in so far to wit as he says that which might be a railing or reviling. Hence this may be sometimes a venial sin, and sometimes without any sin at all. Nevertheless there is need of discretion in such matters, and one should use such words with moderation, because the railing might be so grave that being uttered inconsiderately it might dishonor the person against whom it is uttered. In such a case a man might commit a mortal sin, even though he did not intend to dishonor the other man: just as were a man incautiously to injure grievously another by striking him in fun, he would not be without blame.'

In more simple words, yes; it's really bad.

SAME and yes it is wrong, people like that can go to FUCKING HELL AND ROT.
I am also a virgin and have never even KISSED before and people have called me a p word many times just because I liked Jackson five era Michael Jackson. And not even a real kid in the real world. Words can't explain how much I hate people who do that shit and accuse others especially with no proof. If you're one of those people: fuck off.
OP you sound like someone I would want to be friends with.

Accusing someone of perving on children is disgusting and one of the most disgraceful things anybody could do. That's wild. Who would do something as atrocious as that?

A lot of people here seem to be quite low on the intelligence scale. The things I've read here are pure entertainment. XD

That outright pisses me off. I know exactly how that can effect someone! I went through it for almost two freaking years without any kind of proof...the law was involved trying to get something and never did... including forensic shit...all because of words...and someone being angry at me....bullshit people need to shut the hell up if they don't know anything

I recall someone once saying on here I was a P3d0 because I mentioned that when I was eight I had a crush on both a boy and girl in my class. I'd be a P3d0 if I was still crushing on eight year olds at the age I am now(34.) The whole exchange baffled me.

After the bafflement, I laughed the comment off and moved on. You should do the same. These people online don't know you, and you shouldn't let their comments scare you.