It was the Bitcointalk forum that inspired us to create Bitcointalksearch.org - Bitcointalk is an excellent site that should be the default page for anybody dealing in cryptocurrency,
since it is a virtual gold-mine of data. However, our experience and user feedback led us create our site;
Bitcointalk's search is slow, and difficult to get the results you need, because you need to log in first to find anything useful - furthermore, there are rate limiters for their search functionality.
The aim of our project is to create a faster website that yields more results and faster without having to create an account and eliminate the need to log in -
your personal data, therefore, will never be in jeopardy since we are not asking for any of your data and you don't need to provide them to use our site with all of its capabilities.
We created this website with the sole purpose of users being able to search quickly and efficiently in the field of cryptocurrency
so they will have access to the latest and most accurate information and thereby assisting the crypto-community at large.
(not found by me, but by linux.org.ru user mkfifo)
If you start bitcoind as one user, then type some command as the other user (e.g. bitcoind getbalance), it will work and output your balance. It may be very dangerous on multi-user systems. Imagine there is a user with a hard password that owns bitcoin wallet and a user with weak password that doesn't. So if a hacker breaks the other user's password or gets access to the other user's account, he could steal the money from the first user.
Some desktops (Windows and Linux) even have the guest account with no password, that can be used to steal bitcoins too.
The solution would be to open a UNIX socket with read/write permissions only for the user/group it is opened as.