[AC-Phoenix]

Originally Posted by creb

From episode 15, we find out her real mission is to go back to 1975. The 2010 stop was simply to look for her father.

Now, this is actually kind of interesting. Because we know Suzahu, prior to that first D-Mail Okarin sent, went back to 2000, not 2010. It's also heavily implied in this particular time, that she's searching in 2010 because that's what year is on the badge she carries. Did the Suzahu prior to Okarin's first D-Mail carry a badge from 2000 instead? Or is this all moot, and simply a random bit of info to illustrate that sending D-Mails can have unintended butterfly effects and has no real bearing on the story itself? Beats me.

I have a theory about that... I'll spoiler tag it though because it might very well be true, at least after all the hints we have got so far.

Spoiler for Suzuha's Father-Theory Based on Anime EP 15:

My theory is that Suzuhas father is....*drum roll* DARU!
How I get tho this... Well....

-)Mayuri: I don't know why, but don't you think that Suzuha and Daru look good next to each other?

-)Suzuha was on that con searching for her father, guess who else went there...(or wanted to in some timelines)

-)Suzuha and Daru have the same hair color

-)Daru is the one repairing the time machine, and Okabe was the one who built the divergency meter. So its safte to assume that the one(s) who built the time machine were daru and Okabe. Okabe however, died before the time machine was finished.
This this part is backed up by daru stating that the time machine's generator looks like the phone microwave's.

And yeah, Daru's perverted comment to Suzuha would turn out being pretty gross oO

I have to admit that it's pretty obvious though. Well I guess we have to wait for Okabe to return with the information about the Badge's buyer to be sure. As for my bet see above .