1 - How did you first get into writing fanfic, and what was the first fandom you wrote for? What do you think it was about that fandom that pulled you in? 2 - Name the fandoms you've written in, and how much you've written in that fandom, and if you still write in it. 3 - For each of the fandoms from day two, what were your favorite characters to write? 4 - Do you have a "muse" character, that speaks to you more than others, or that tries to push their way in, even when the fic isn't about them? Who are they, and why did that character became your muse? 5 -If you have ever had a character try to push their way into a fic, whether your "muse" or not, what did you do about it? 6 - When you write, do you prefer writing male or female characters?7 - Have you ever had a fic change your opinion of a character?
8 - Do you write OCs? And if so, what do you do to make certain they're not Mary Sues, and if not, explain your thoughts on OCs.
9 - Pairings - For each of the fandoms from day two, what are your three favorite pairings to write?
10 - Pairings - Have you ever gone outside your comfort zone and written a pairing you liked, but found you couldn't write, or a pairing you didn't like, and found you could?
11 - Genre - do you prefer certain genres of fic when you're writing? What kind do you tend to write most?
12 - Have you ever attempted an "adaptation" fic of a favorite book or movie but set in a different fandom?
13 - Do you prefer canon or fanon when you write? Has writing fanfic for a fandom changed the way you see some or even all of the original source material?
14 - Ratings - how high are you comfortable with going? Have you ever written higher? If you're comfortable with NC-17, have you ever been shocked by finding that the story you're writing is G-rated instead?
15 - Warnings - What do you feel it most important to warn for, and what's the strangest thing you've warned for in a fic?
16 - Summaries - Do you like them or hate them? How do you come up with them, if you use them?
17 - Titles - Are they the bane of your existence, or the easiest part of the fic? Also, if you do chaptered fic, do you give each chapter a title, or not?
18 - Where do you get the most inspiration for your fics (aka "bunnies") from?
19 - When you have bunnies, do you sit down and start writing right away, or do you write down the idea for further use?
20 - Do you ever get bunnied from other people's stories or art in the same fandom?
21 - Sequels - Have you ever written a sequel to a fic you wrote, and if so, why, and if not, how do you feel about sequels?
22 - Have you ever participated in a fest or a Big Bang? If so, write about your favorite experience in relation to one. If not, are there any you've thought about doing? And if not, why not?
23 - When you post,ewhere do you post to? Just your journal? Just an archive? Your own personal site?
24 - Betaing - How many betas do you like to use to make sure there aren't any major flaws in your fic? Do you have a Beta horror story or dream story?
25 - Music - Do you listen to music while you write? Do you make playlists to get into a certain "mood" to write your fic? Do you need noise in general? Or do you need it completely quiet?
26 - What is the oddest (or funniest) thing you've had to research for a fic?
27 - Where is your favorite place to write, and do you write by hand or on the computer?
28 - Have you ever collaborated with anyone else, whether writing together, or having an artist work on a piece about your fic?
29 - What is your current project or projects?
30 - Do you have a favorite fic you've written? What makes it your favorite? And don't forget to give us a link
7 - Have you ever had a fic change your opinion of a character?
I'm assuming we mean writing a fic changing our opinion? In that case, the answer is oh goodness gracious yes. A character I may not like all that much, if I write a fic from the pov of a character who does like them, I often start seeing why they like them and end up liking them myself.
It's happened more than once, in more than one fandom, but the example that came to mind when I first read this question is Buffy Summers. I was, when I first got into the fandom rather meh on Buffy herself. (Which actually wasn't unusual, I often feel less strongly about the main character in a show with an ensemble cast than some of the secondary ones.) I didn't hate her or anything, I just... didn't find her engaging or interesting in a way that made me want to explore her character more.
My gateway character to Buffy was Giles and really one of the things that helps define Giles is his relationship with Buffy and how he feels about her. So, to write Giles and keep him true to character, I had to engage with Buffy and see her through his eyes. And I wrote a lot of Giles pov. The way Giles saw Buffy was not the way I saw her and having to look at situations about her and interactions with her from Giles' pov and get it right the way he saw and felt about her slowly changed my opinion of her as well. Buffy never became a super favorite character but I grew to like her quite a lot. One of my favorite of my own vids that I've made is a Buffy Summers vid. I doubt that would've ever happened if I hadn't had the experience of looking at her with Giles' eyes.