In one way I think so, yes.
Many people obviously offload trust to the community to some extent, (probably much more than we should, reflected in popularity of helpers like the one you asked for), which involves the AUR discussions and votes, and the Arch wiki.
Sometimes a flatpak or container image, or straight up compiling from instructions, is the easier answer.
Have fun and be careful but curious out there! How obscure AUR packages you will be able deal with safely depends on your level of ambition.