Also what is important here to note is how RapTarX has conducted himself. The only time he posted was when he received a red tag arguing he was innocent and that Little Mouse was the one who had the explaining to do and asked for the red tag to be removed.
What else could he have done? The way Bitcointalk works, is that red tags often grow the more the user complains about it.Whether RapTarX is connected to Little Mouse is one thing and to many in the forum highly debatable but it was Little Mouse that connected himself to RapTarX with the most ridiculous of explanations, so much so in fact that the wanted to see the reaction of the community after his alleged faux-mishap shall we say - but instead of giving it a few days or a week to tally up the response from the members which is what he wanted to accumulate, he deleted his post in under 5 minutes after just a few members asked him why he used the Little Mouse account to post as RapTarX account.
Maybe you want to KYC them, LOL
Nope 
On a serious note, I have a question. Why after 15 long months you felt that Little Mouse and RapTarX should be tagged? LoyceV gave a crazy theory, but I would like to believe that it's not true. FYI, I am not saying that one should not do anything in such type of case but why after these long times. It seemed everyone forgot about it. I did to be honest until I was quoted.
From what I recall I was going through a routine of adding members to my distrust list and was tagging away at various accounts and noticed nearly all of them already had red or negative, it so happens I found the Little Mouse account and read the feedback given by Lauda. That resulted in everything that followed after Little Mouse sent PMs to at least one DT member which (to my knowledge) was claiming some form of retaliation on my part rather than using the PM to protest his innocence in the strongest possible terms.