Otherwise you may not only bring your WordPress account down, but you may also crash the server for everyone else. That is what I just did today.

I called in and the server administrator called me, and we discussed several plugins that can cause problems on shared servers. I disabled CommentLuv, YARP, and Broken Link Checker. While I was at it, I also disabled Google Analytics, Google Site Verifier and one other. He said that YARP was known to cause problems, and once I described what Broken Link Checker does said that might happen as well. He also suggested I not use VaultPress which he said also coincided with the high server usage that caused the crash.

I had never been told by other providers that this was a problem. I wonder now if WordPress could put out some guidance and tell people not to do shared hosting if they have more than 10 plugins.