they are both excellent libraries, as is MIA, it is a tricky situation for sure, and we should assume *any* public web host is going to be monitored by the police
and i didn't mean to be sectarian, diversity is good, nothing against green anarchism as such, but i do oppose the publishing of reactionary materials in an anarchist library which is why these alternatives were set up https://www.anarchistlibraries.net/libraries
with libcom, at first it was with a member of the journal, but what's telling is all of the admins of the site came out defending Drury, that this is "just his day job", when it increasingly was revealed that his day job is being a leading counter insurgency theorist and police consultant. This became a big deal around 2013-14 and was a drop off of membership activity after that, the place was dead for some years before they did the site makeover, i think around 2018, which scrubbed many of the posts about this
Anyway, i'm not telling you what to do, books are books, i am less sure about Anarchy Planet, their messy politics is likely just a reflection of North Americas confused anarchist scene, but i was convinced 10 years ago libcom is a honeypot and nothing has changed apparently ( tho i still use their library pretty frequently lol