Hello
There are some strange links in posts like this:

https://yande.re/post/show/304104
https://yande.re/post/show/303820
https://yande.re/post/show/303421

Link "Download larger version" in them contains sample url:

https://files.yande.re/sample/ed23d26d7bdd25e89c282b2f12320f13/yande.re%20304104%20sample%20ass%20ayase_eli%20bra%20cleavage%20dakimakura%20love_live%21%20nipples%20pantsu%20panty_pull%20seifuku%20shirt_lift%20sousouman.jpg

https://files.yande.re/sample/d845de43f0e1e30a4eed9fe2ea0a8553/yande.re%20303820%20sample%20bike_shorts%20cleavage%20dakimakura%20joenny%20rwby%20thighhighs%20yang_xiao_long.jpg

https://files.yande.re/sample/a167e38ae27070508533a723a3768ac0/yande.re%20303421%20sample%20cleavage%20dakimakura%20dress%20garter_belt%20namaniku_atk%20no_bra%20pantsu%20pointy_ears%20sansei_muramasa%20skirt_lift%20stockings%20thighhighs%20wedding_dress.jpg

Can someone explain me why?

I think this is about that dakimakura pictures don't allow downloading in full size
https://yande.re/forum/show/16923

Well, yes. It's like that on all pictures with dakimakura tag.

Is this legality problem still actual?

May be link to larger version can be removed in such cases?
I save from here a lot and really don't want to accidentally save resized versions instead of original.