Why has Jang Wonyoung changed a lot?

 I've always liked her since she was still in IZONE and I'm still rooting for her even now.
I stumbled across IZONE Chu videos on Youtube today and I noticed that she has completely changed. 
She seems to be more careful with every single of her behavior and speech now, after getting a lot of hate for the most unreasonable things ever. She used to be so carefree and adorable back when she was in IZONE, she looked really happy. 
It breaks my heart to see her change like this. I can't help but think about the burden she has to live with at such a young age. 

I mean, I know that you can't expect someone to stay the same their whole life. She is absolutely gorgeous now but sometimes, I just miss the old Wonyoungㅠㅠㅠ

pann
[+217][-236]

1. [+197][-20] I can't f*cking understand people who say that Jang Wonyoung's personality seems fake now. You guys are the ones who leaves hate comments about her as you observe her for 24 hours. Of course, she can't help it but change and becomes more careful now. People make rumors when she makes the slightest joke with her teammates and make her look like a rude b*tch just because she's pretty. You guys are the ones who changed her and now what? You hate her because she seems fake?ㅋㅋㅋㅋ You guys did that to herㅠㅠ The reason why female idols become more careful now, get depression, and even make extreme choices are mostly because of Pann girls. Why can't you just admit it?ㅋㅋㅋ You think you only bullied her for one or two days?? You've been bullying her since she went through her puberty at the age of 15, when she was the most unstable, right?ㅋㅋㅋ And now you're calling her personality fake?? Karma will get back to you, Jang Wonyoung's antis. You feel insecure because of her, so you're making such an innocent girl cries. Just watch, you will be crying blood for that one day. I'm sure, karma will bite you in the ass one dayㅋㅋㅋ And after all of this, you will be blaming it all on the Hannams. I know you guys would be saying things like 'It's the Hannams who turned her into this. We did nothing wrong. Hannams are the ones who killed her. Protect female idols at all cost'~~ one day. Pann Girls are no betterㅠㅠㅋㅋㅋ

2. [+165][-12] But don't people change, both in terms of looks and personality, as time passes by? Especially the fact that she was 15 or 16 when she was in IZONE, and now she's 19 and almost become an adult...?ㅋㅋㅋ This happens to everyone, even non-celebrities, with no exceptions. Why are you making it sound like Jang Wonyoung is the only one who changes...? Looks like you still look exactly the same and also have the same mental age and perspective as yourself back in middle school?

3. [+158][-22] She lost her baby fat and a lot of weight. On top of that, she got braces and special care, since she's a celebrity. She moved salon so she has been getting different hairstyles and makeup styles. She's at the age where her face naturally changes as she grows older. Isn't it normal...? Besides all of that, she's pretty much still the sameeㅋㅋㅋ The left picture was taken when she was still in IZONE and the right one was taken after she debuted in IVE. She looks more mature as she ages, but she didn't drastically change like how you make it sound...ㅋㅋㅋ

4. [+140][-9] The reason why Jang Wonyoung is getting on Pann girls' nerves: They're the same age as Jang Wonyoung, but all they do is sit in the corner of their rooms, leaving hate comments on female idols who are the same age as them but are living really cool life. They can't help but compare it to their life and it hits them hard how it's really different. 

5. [+135][-10] She has always been beautiful ever since she participated in Produce 48 at the age of 15. She was that girl who trended on searching engines since her first appearance on TV just because of how f*cking gorgeous she is.