This is in response to your post in r/LGBT, and I would have replied in that thread but I cannot post in that subreddit, and also it is an issue which comes up quite often, so I'm bringing it here for open discussion.

You have probably seen some of the many discussions on the subject of whether 'tranny' is or is not an offensive word, and ultimately it is for each trans person to decide for themselves whether they feel it is offensive to be labelled as such - their feelings about the word will be heavily influenced by their personal experiences - if they have previously been on the receiving end of harsh insults which include the word, they may feel it is offensive, regardless of the intentions of the current speaker, and that is understandable.

Same goes for any other word, such as 'queer' - offensive to some and not to others - and I'm using these examples because I trust you will understand how they can be offensive when no offence is intended, depending on the person's previous experience with the word.

So now we come to your comment:

Cis, I'm unsure why so many take offense to being called it. Yes it's a label, and people don't like labels but then trans and gay people live with labels all the time. Cis is simply the opposite of trans, if your not in transition, Trans. Then you are in sync with your birth sex, Cis. For some weird and crazy reason some people instantly jump to the conclusion that because they have received an identifying marker, a label, that it is derogatory I don't personally understand how this offense happens. Not to mention the fact that there are people out there with intention of spreading the idea that it is a derogatory term. It is no more derogatory than lumping all humans together as "homo Sapien".

Now we can apply the same dynamics to the word ''cis'' ... for many people, their first encounter with the word is on an internet forum such as this, and they are introduced to the word in a very negative way, such as being accused of being ''cissexist'' or having ''cis privilege'' or ''cissplaining'', videos and articles about ''shit cis people say'' ... or if they venture into r/SRS, likely they will be met with a blast of ''white cis men are disgusting'' or ''cis scum'' ... it starts to look as if the word was invented for the purpose of insulting people.

I have not yet seen it used in a positive manner, only negative or neutral.

And then there is another problem: People who use this word usually divide the world into ''trans'' and ''cis'' so that if you don't identify as ''trans'', you are automatically labelled as ''cis'' ... but most people have never even thought about their gender identity, they might even be on the start of a journey of self discovery which will lead them to identify as gender neutral or even trans, but they get automatically labelled as ''cis'' before having their first thought about it.

Many people have been living with the gender which was given to them at birth as if they have no choice in the matter and have to make the best of being born male or female whether they like it or not ... if you ask them how they know they are male or female, they will cite their reproductive organs because that is all they have ever been taught ... it doesn't mean they are bad people, but suddenly they will be accused of being ''cissexist'', and they quickly learn that being labelled as ''cis'' is an automatic rejection from groups who use that word unless they can prove that they are not ''cissexist''. And it's impossible to prove that to some people, so the label sticks: being ''cis'' is synonymous with being ''cissexist'' in some groups.

The bottom line is, it can feel as if being ''cis'' is considered bad by many of those who use the word.