No, it isn't practical to issue a warning. The latest purge removed nearly 5000 of just over 7000 accounts. You'd be surprised how many people join up, post one or two messages, and then never post again. Even more register and then never post at all, but they are weeded out more frequently.
Bear in mind that contributing to the life of the forum by posting messages is the only "payment" that Jean-François asks in return for the otherwise free benefits of membership. The posting requirement is stated at the beginning of the rules here
By registering on the forum you commit yourself to:
• respect other members
• participate in discussions
• post at least one message per month
and every forum notification email you receive, including when you join, has the following reminder at the bottom:
Members are required to post at least one message per month and respect the rules of the forum. If these conditions are not met, the account will be deleted. It is possible to re-register.
As it says, if you lose your account and then get up your courage to start posting, you can simply rejoin. Remember also that you can build up a "credit" to tide you over periods when you may not be able to post. So, for example, if you've just joined and you post 3 messages, your account is safe for the next 3 months.
Classical Guitar Forum.
"Experience is something you don't get until just after you need it." - Steven Wright