Bloating means adding features which wont be used by most people. Or features which are useless because you can do it already in another way. Or things which will annoy most people. Or not really needed stuff because it is already available in other addons or even stand alone programs (eg: that notepad request thingie which was made lately).
The power, uniqueness and usefullness of Plus! is exactly that it isn't bloated with useless stuff like that or features which don't work for most people (eg: like messenger discovery x, no pun intended).
A good piece of software does not contain as much features as possible.
Less is more...
If all the stuff that was suggested over the years was added you now would have an addon which is 20Mb big (so to speak), and contains 90% of useless stuff or stuff which doesn't work for most people anyways. Also, the preferences would be seriously chaotic and contain 100 pages of settings which nobody could understand anymore.
This does not mean there wont be new features. It means that each suggestion that is made is carefully concidered and only added if it has a usefull potential and be used by thousands/millions of people, not by a few.
/ 
