There is the saying better 10 guilty people go free then 1 innocent goes to jail.
Here their is no jail. So things can be a bit harsher.

Lets face if a neutral tag does very little, if any, harm

Will it keep you out of signature campaigns? Probably not.

If you want to trade with people will it make them more likely to use an escrow? Probably not, since you no trades / sales or anything else to most people trading you have no reputation for that so they would want to use an escrow anyway.

Having 150 posts, which comes out to 5 a day and creating this thread makes you look more guilty then the neutral tag. That is a lot of time and effort to put in for a new user.
Creating this thread will make people question what you are doing here more. And there are a lot more people who now are going to be paying attention.

-Dave