Should it be that all the campaigns that were applied for had open slots, I wouldn’t find that unusual although, desperation could be a better term to tag it but, nothing unusual about that. Just a user looking for slots where ever there is one.
I wouldn't have created a thread or called that unusual behaviour if the campaigns had open slots. If you had read this whole thread, you would find the answer in @The Cryptovator's post where he explained how he changed the titles of the threads to "[OPEN]" himself when submitting his applications.
Also, being a hero member, it’s also possible that all of them open campaigns would have slots for hero members so, that too can go.
I don't know if you didn't read the OP or what, but it clearly says and shows (in the screenshot) that the campaigns he applied for were all either CFNP or PAUSED.
When I was updating my 2-factor authentication I noticed something - It's very possible that account sellers are now using 2FA to trade accounts. There's no recording of 2FA changes, so if a member logs in with the same password as the last owner, and changes the 2auth, that is potentially a way to trade accounts now. I already asked Vod if it was possible to record that data on bpip, as that could share a lot of light on if the theory is true.
As for the member, it does seem desperate, though I don't think it's unusual. If someone wants to get into a campaign it only makes sense to apply for all that's available. Applying for CFNP campaigns though just shows that they not only do not know how the forum works, and has made no effort to read before they start applying.
I also had the thought that the account might have changed hands and is being controlled by a new owner after changing or possibly enabling 2FA without changing the password or email, since we don't get to know if an account had a change in 2FA or when it was enabled/disabled. However, this is only possible if someone gives the access of the account to someone himself, either through a deal or just to use it, because if someone hacks an account and enable 2FA without changing the email, the original owner can reset it using the email attached as far as I know, unless the original owner didn't have a valid email address attached to the account which is a very big security flaw from his side.