These have been [pointed out](https://github.com/prometheus/client_ruby/pull/95#discussion_r262053645) as a feature that gets abused. Right now I’m not exactly sure what that abuse typically looks like, but maybe there are Prometheus docs that talk about it. Is the abuse so bad that clients are being built without this feature now?
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brian-brazil commentedon May 1, 2019
The abuse is mainly using it for what should be target labels.
dmagliola commentedon Jun 25, 2019
Relevant discussion to this issue: #93
Sinjo commentedon Feb 1, 2022
I think we can safely consider the discussion resolved.