What are your thoughts?

This thought has been on my mind for a while and I want to you what your thoughts are. I have been taking photos for almost 2 years now and most people love my photos. I have noticed things that kind of upset me and I don't understand why people do it. So when people post photos I have taken, they add filters to them. I take the photos, I think that I did a great job and they look fine. Then someone adds filters to them and I don't understand why they use a filter.

Do they not like my photos? Are they saying my photos are good just to make me feel better about myself? Are my photos not good enough? Do they just want the photos to look "cool?" Are filters just the trendy thing to do? Do people think they look better when they use a filter? Let me know what you think.

No filters

No filters

With filters