In our comments and Answers Should we assume a proper level of safety precautions being taken?
It's not our job to explain safety precautions to people, if that's what you're wondering. The answers here, when they describe experiments, are meant to be read as "this is basically how X might be done" rather than "here is how to do X" - in other words, we're just conveying knowledge about what is involved in running a particular experiment, not providing instructions on how to actually do it. If someone wants to carry out an experiment described in an answer, it's their responsibility to do whatever additional research is necessary to find or develop a proper set of instructions, including safety precautions.
As sort of a corollary to that, if someone asks whether some particular procedure or effect is safe, or about how to do something safely, it's off topic for the site. We can answer questions about the effects of a certain amount of a physical phenomenon, though. For example, "What are the effects of running current through a human body?" is a fine question, but "How much current can safely run through a human body?" is not. If someone asks in a comment whether something is safe or not, it's best to either not answer, or just say you can't address that.
I've been trying to keep in mind my own mixture competence and insane lack of regard for personal safety around my fourteenth birthday.
More specifically I look for work that can be done safely in a home environment and I try to specify what safety gear you should wear and/or have on hand.