Some of these tags are polluted with other meanings, such as a “helpless” bondage theme or meme use on images that depict abominations. They need a cleanup and perhaps some meanings need to be split into other tags.
The canonical name for the merged tag should be decided. Since we already have tags like hug request or pet request, it could be named “help request”.
op needs help needs a split because it has two meanings: op requesting/needing help and meme use on messed up images. The former meaning needs to imply “help request”. Oh, and i need help and looking for help are basically the same tag as “op needs help”.