At 25, you are not that old.
You have a long life ahead... Lots of circumstances will change.
Relationships will emerge... and opportunities arise that may well result in dramatic shifts in your career, residence, and notoriety.
Increasingly, potential employers and potential lovers turn to sophisticated search engines to delve into your background.
This includes the emerging and ever improving field of automated photo recognition.
We are not far off from a time when you will be able to enter someone's name, and every single picture ever posted of that person will be found in a search... which will lead to aliases, usernames, and every single posting you ever made... thru your entire life.
While you may care less and less who knows about your interests in this site... can you say that everyone who may be important to some aspect of your future ambitions will be as blase?
Many people are so conservative as to find any interaction on such a site as this as being perverse. And they would find pictures posted of one's own genitals to be at the very least, indicative of very poor judgement.
Not a problem as regards most strangers... but what if such a person has the power to give you a well deserved promotion?
Look at what happened to Anthony Wiener... and he did nothing even remotely illegal...
Like a 20 something who gets an ill advised tattoo on his face... your irrevocable actions as a young man can severely limit your options in the future.
For these reasons, alone, it is a very good idea to try and keep your identity online as much in your control as possible. In particular, Keep those aspects of your sexual proclivities to which many others might react narrow mindedly confined to arenas in which you can control who gets to know your true identity.
While I think there is nothing shameful about sexuality, or what gets discussed here... I am intelligent enough to realize that MOST people do not share my open minded perspective. To that end, I do not open myself to examination in this area, not so much to conceal myself... but to be respectful of other people's limitations and tendency to judgement.
What will be available, in the future, in terms of automated systems that can ferret out everything you ever did online, is hard to predict. It will almost certainly be broader than can be imagined.
Think about your wildest ambitions... your dreams come true, in love, in career, in civic or social prominence...
And ask yourself if anything you have done online has the potential to torpedo those aspirations on the cusp of coming true...
Would the girl of your dreams dump you if she found out about your cam activity?
Would you not be considered for partner at the ripe age of 45 because of things you posted at 25?
We all do better in life when we can retain the power to present to others those aspects of ourselves that those others are most likely to understand and sympathize with.
My boss does not need to know about my feelings on cocksucking, anymore than he needs to know who I voted for.
The fantasies I have at 50 are nothing like the fantasies I entertained at 25... I would prefer to be able to let my own past fall away, so that others see me as I am, here and now.
Revealing too much of your identity online, is like walking down the street with your tax return stapled to your chest.
...or your dick hanging out your fly.