Hear Ye! Since 1998.
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Dec 98

ICQ Note

If ICQ won’t let you accept file transfers from some people, this is probably the reason. ICQ creates a directory which matches the person’s nick and stores all incoming files from that person in there. If that person has weird crap in their name – * / \ ? ” < > : | – then ICQ won’t accept the transfer, because it can’t create a directory with those illegal characters in it.