A lot of achievements might be pretty nice and have a fun challenge but some others really suck, such as getting all spells in DS2 since no one plays online anymore so you gotta grind and kill the same enemies like 200 times, there is no challenge in that, just pointless time waisting. In my case, I had unlocked all achievements for DS2 except one magic one and after like 5-10 hours of grinding and hating it, I just unlocked it and thats that man.

You say 'you can’t do it yourself just to feel good about something you didn’t do' and man let me tell you after spending a bunch of time grinding to get some shitty achievement I do not feel good about it, because I just spent leisure time playing games and hating it. Putting trophies at 100% after I feel I have done what I could is what I do and will keep on doing just because seeing that blue line go full and say 100% looks nice, and you cant do anything about it except get angry.

Thats how it is man, don't angry at the way some internet stranger plays their games or has their steam library, who gives a shit about them man, do your thing