Here is what they wrote about Voteitup, which has been used for thr last 2 years.
As was outlined in the opening reply, the sql queries being run by the program was not only affecting the load on the server but also causing high IO waits on the hard disks. As your database grows, and you add more vote topics through the plugin this increases the amount of information the server most request and process. At the time of your suspension it had grown to the point where it was affecting service for our other customers, such as increasing load times for their sites, and emails which forced us to disable your plugin, then later your site till this issue could be addressed.
At this time I have evaluated your site and determined with the plugin disabled it is no longer causing an issue on our shared hosting services.
For your convenience I am also including the queries provided by the administrator in the opening reply.
I had to disable that plugin otherwise they wouldnt let me run the site.... .