@(you need an account to see links) I totally understand your frustration as someone who also has zero skill in programming, coding, drawing, etc. I've also never written a guide or a program, and I've picked up most of my rep points by screencapping threads.
I also got quite a bit by participating in the last ck event- Defenders of Clraik- and helping out my team. Of course, this requires an event to be going on, but the last one was so well loved and having so many participants led to everyone +repping each other a good amount on the various rounds as we helped each other out!
You mentioned that you couldn't contribute towards the guides as there are, of course, a good amount of them. But perhaps you could make a guide on the same topic with a different tactic than the other user's guide, for example?
With staff now posting updates offsite on places such as the neopets Discord, that also leaves a pretty good space for news updates to share. I notice I rarely see screencaps from the neopets Discord, so there is definitely a hole there in terms of getting info to this community.
Taking a quick look at the Neopets Services subforum, I don't see any pet/item avatar lending service thread; if you have the NP for something like FQD, Meowclops, or shells to lend avatar pets/petpets for free to trusted members, I am sure that would be a handy way to pick up +rep, too!
I hope this helps so you don't feel discouraged- this community is genuinely a great place in my (very subjective ofc!) experience.