“Bottom line can someone ask a shaila: a Reform person takes an artscroll siddur and copies pages with amidah are you allowed to use it for davening?”
Did the reform Jew use the copy machine on Shabbos? If so, this would be the same shailah I mentioned earlier. Unfortunately, I don’t remember the exact psak; I think it was one of those “it’s mutar, but you still shouldn’t do it” type of things.
If he didn’t make the copy on Shabbos, then what’s the question?
“No, I mean people with left/right wing secular biases and they are comfortable with translations that caters to their biases.”
Alright. I haven’t personally met anyone like this, but I’ll take your word for it.
“even twisted translations and the like are irrelevant, no ones hashkafa is getting affected”
Eh, if someone didn’t know better and didn’t realize the translations were twisted, it could absolutely affect their hashkafa. Again, I don’t actually think Sefaria should be wholesale banned or anything.