Question:
How come the artist super-long name from the source " 石坂リューダイ　いわかけるとか "
Translates into relatively short name "Ryudai Ishizaka" ? I mean I know hiraganas are like 2 letters each but even if was only one letter it feels like something's off O.o

Marona762 said:
Question:
How come the artist super-long name from the source " 石坂リューダイ　いわかけるとか "
Translates into relatively short name "Ryudai Ishizaka" ? I mean I know hiraganas are like 2 letters each but even if was only one letter it feels like something's off O.o

That bit's probably comments/additional info, (i.e. not really part of their name) like you sometimes encounter in twitter. Anyways, they really introduce themselves as "石坂リューダイ" in the front page: https://www.pixiv.net/users/378527

石坂リューダイです。...

P.S. The artist draws "いわかける！ -Climbing Girls-" (hence the "いわかけるとか" bit): https://ja.wikipedia.org/wiki/%E3%81%84%E3%82%8F%E3%81%8B%E3%81%91%E3%82%8B!_-Climbing_Girls-

o.o I see, but how Google Translate can tell the additional info apart and why it discard it in the translation?

Marona762 said:
o.o I see, but how Google Translate can tell the additional info apart

Don't think it can, so you may have to:
- (As mentioned above) read their official profile page in their image posting site (like Pixiv) and/or social media account (e.g. twitter), if exists, to see how they officially introduce themselves
- Google their name to do further research yourself

Marona762 said:
and why it discard it in the translation?

As said above, that part isn't really part of their name (they just happened to also fill in that bit of info to the "name" field of their Pixiv account) and so should never be integrated into their corresponding Artist tag.