yes, that is absolutely right... Changing the themes frequently may make you loose some of the visitors as visitors are also attracted by theme or templates.

Originally Posted by alec11

How often do you change your blog template?
Usually, i'm changing my blog templates weekly or monthly.
Is that bring any bad effect to my blog?

For me, template change should be done not so often (twice or once a year may do).

If you will update the content on your blog then it will be much better than changing template of your blog.

I would also like to use my blog template as one. It is my own and it helps to keep my blog as separate. In my opinion it is better to keep blog template.

I change template only if I need it. keep on developing/updating my template and not replace it if possible.

don't want my reader to feel strange on my site