Question Forum account keeps getting deleted/blocked

I'm a new user to webtrees and have been trying out the software, which has been great. But to ask a question and discuss on this forum has been frustrating. This is the third account I've had to make, while the others have been deleted/blocked after about a day of non-use. Is there a reason why? I was looking if there were any rules in this forum that I might be doing wrong, but can't find anything specifically.

Zack, 
The www.webtrees.net site gets a lot of hacker and spam activity.  Although we have technical safegards in place, we still get a lot of people registering that have no interest in webtrees, etc.  So, I look for new uer registrations that have a characteristic of a hacker, the time between registration and last visit is one or two minutes or less.  These registrations are blocked  
Unfortunatly, your registration fell into the parameters of being a hacker.  

Makes total sense. Thank you for the clarification!

I'm wasting time creating accounts... I am considered as an hacker or spammer ?

I understand managing them is quite annoying, but how many like me (who have real interest in webtrees) tries to create an account and are rejected a few hours later without explanation ?

I contacted Greg Roach by mail, though my account will be ok, but yet each time my account is deleted !

Yet I spent so much time to create my account (for how many hours before it's deleted again), that I had no time left to participate to forums.

Usually, It always happen like this :

1. Searching and reading forums to find some answer to my question, (not logged in)
2. Someone asked a question without answer and where I should help,
3. I wan't to answer, so need to login
4. Can't loging (account banned ou deleted, I don't know)
5. wasting time to find why I can't login, asking new password, waiting for an e-mail that will never come
6. after hours or days, finally managed to login (today I simply create my account with same login, email, password for the 4th time)
7. Fed up of this forums, so no post to ask or answer
8. A f... bot delete my account a few hours later, and this should probably happen when I'm sleeping...

Yet while writing this answer, I wonder if had will have enough time and crossing fingers that my account will not be deleted meanwhile ! (I don't even dare to spend a few minutes to drink a coffee)

And today I don't even know if I try to participate to this forums my posts will be "safe". I like helping but not wasting time.

Thanks for reading.

My apologies.  The use case noted above is a bit to aggressive.  Will look for a different way to protect the site.

What (use case) is agressive?
deleting accounts (is agressive)!?
Can you explain?

See post # 2 above.

thx for hinting me.

I have removed CAPTCHA and now using a different plugin to help block spammers.  Forum accounts will no longer be deactivated if suspected as SPAM

During the June 26 and 27th dates, your IP address was listed in the site security log as having multiple failed attempts at logging into the forum.  This pattern of activity is consistent with someone hacking the site.  As a result, the ip address was blocked in early July. I have removed the block.
As a side note, you have three different accounts with the forum created on June 2, June 27 and June 30.  The June 2 and June 27 accounts have no postings with the forum.